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Finding the Fourth Proportional to 99,325.23, 137,074.64 and 56,308.15

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Solution

The fourth proportional to 99,325.23, 137,074.64 and 56,308.15 is: 77,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,325.23 : 137,074.64 = 56,308.15 : x
  2. Step 2: Convert to fraction form
    99,325.23/137,074.64 = 56,308.15/x
  3. Step 3: Cross multiply
    99,325.23x = 137,074.64 × 56,308.15
  4. Step 4: Simplify right side
    99,325.23x = 7,718,419,390.32
  5. Step 5: Solve for x
    x = 7,718,419,390.32/99,325.23
  6. Step 6: Final answer
    x = 77,708.55

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