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Finding the Fourth Proportional to 11,787.87, 17,689.89 and 4,398.24

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Solution

The fourth proportional to 11,787.87, 17,689.89 and 4,398.24 is: 6,600.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787.87 : 17,689.89 = 4,398.24 : x
  2. Step 2: Convert to fraction form
    11,787.87/17,689.89 = 4,398.24/x
  3. Step 3: Cross multiply
    11,787.87x = 17,689.89 × 4,398.24
  4. Step 4: Simplify right side
    11,787.87x = 77,804,381.79
  5. Step 5: Solve for x
    x = 77,804,381.79/11,787.87
  6. Step 6: Final answer
    x = 6,600.38

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