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Finding the Fourth Proportional to 89,744.48, 133,557.45 and 86,754.67

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Solution

The fourth proportional to 89,744.48, 133,557.45 and 86,754.67 is: 129,108.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,744.48 : 133,557.45 = 86,754.67 : x
  2. Step 2: Convert to fraction form
    89,744.48/133,557.45 = 86,754.67/x
  3. Step 3: Cross multiply
    89,744.48x = 133,557.45 × 86,754.67
  4. Step 4: Simplify right side
    89,744.48x = 11,586,732,500.79
  5. Step 5: Solve for x
    x = 11,586,732,500.79/89,744.48
  6. Step 6: Final answer
    x = 129,108.02

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