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Finding the Fourth Proportional to 15,787.80, 23,679.72 and 4,100.04

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Solution

The fourth proportional to 15,787.80, 23,679.72 and 4,100.04 is: 6,149.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,787.80 : 23,679.72 = 4,100.04 : x
  2. Step 2: Convert to fraction form
    15,787.80/23,679.72 = 4,100.04/x
  3. Step 3: Cross multiply
    15,787.80x = 23,679.72 × 4,100.04
  4. Step 4: Simplify right side
    15,787.80x = 97,087,799.19
  5. Step 5: Solve for x
    x = 97,087,799.19/15,787.80
  6. Step 6: Final answer
    x = 6,149.55

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