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Finding the Fourth Proportional to 91,888,503.10, 137,664,793.05 and 74,756,419.90

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Solution

The fourth proportional to 91,888,503.10, 137,664,793.05 and 74,756,419.90 is: 111,997,983.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,888,503.10 : 137,664,793.05 = 74,756,419.90 : x
  2. Step 2: Convert to fraction form
    91,888,503.10/137,664,793.05 = 74,756,419.90/x
  3. Step 3: Cross multiply
    91,888,503.10x = 137,664,793.05 × 74,756,419.90
  4. Step 4: Simplify right side
    91,888,503.10x = 10,291,327,074,692,404
  5. Step 5: Solve for x
    x = 10,291,327,074,692,404/91,888,503.10
  6. Step 6: Final answer
    x = 111,997,983.72

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