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Finding the Fourth Proportional to 213,841.92, 320,792.64 and 89,154.24

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Solution

The fourth proportional to 213,841.92, 320,792.64 and 89,154.24 is: 133,743.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,841.92 : 320,792.64 = 89,154.24 : x
  2. Step 2: Convert to fraction form
    213,841.92/320,792.64 = 89,154.24/x
  3. Step 3: Cross multiply
    213,841.92x = 320,792.64 × 89,154.24
  4. Step 4: Simplify right side
    213,841.92x = 28,600,024,016.79
  5. Step 5: Solve for x
    x = 28,600,024,016.79/213,841.92
  6. Step 6: Final answer
    x = 133,743.77

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