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Finding the Fourth Proportional to 88,865.90, 133,039.65 and 79,534.70

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Solution

The fourth proportional to 88,865.90, 133,039.65 and 79,534.70 is: 119,070.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,865.90 : 133,039.65 = 79,534.70 : x
  2. Step 2: Convert to fraction form
    88,865.90/133,039.65 = 79,534.70/x
  3. Step 3: Cross multiply
    88,865.90x = 133,039.65 × 79,534.70
  4. Step 4: Simplify right side
    88,865.90x = 10,581,268,650.86
  5. Step 5: Solve for x
    x = 10,581,268,650.86/88,865.90
  6. Step 6: Final answer
    x = 119,070.07

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