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Finding the Fourth Proportional to 91,894.02, 137,860.16 and 28,711.59

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Solution

The fourth proportional to 91,894.02, 137,860.16 and 28,711.59 is: 43,073.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,894.02 : 137,860.16 = 28,711.59 : x
  2. Step 2: Convert to fraction form
    91,894.02/137,860.16 = 28,711.59/x
  3. Step 3: Cross multiply
    91,894.02x = 137,860.16 × 28,711.59
  4. Step 4: Simplify right side
    91,894.02x = 3,958,183,730.72
  5. Step 5: Solve for x
    x = 3,958,183,730.72/91,894.02
  6. Step 6: Final answer
    x = 43,073.36

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