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Finding the Fourth Proportional to 89,799.99, 123,915.22 and 55,339.36

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Solution

The fourth proportional to 89,799.99, 123,915.22 and 55,339.36 is: 76,362.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,799.99 : 123,915.22 = 55,339.36 : x
  2. Step 2: Convert to fraction form
    89,799.99/123,915.22 = 55,339.36/x
  3. Step 3: Cross multiply
    89,799.99x = 123,915.22 × 55,339.36
  4. Step 4: Simplify right side
    89,799.99x = 6,857,388,520.92
  5. Step 5: Solve for x
    x = 6,857,388,520.92/89,799.99
  6. Step 6: Final answer
    x = 76,362.91

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