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Finding the Fourth Proportional to 19,424.31, 29,108.88 and 8,868.39

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Solution

The fourth proportional to 19,424.31, 29,108.88 and 8,868.39 is: 13,289.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,424.31 : 29,108.88 = 8,868.39 : x
  2. Step 2: Convert to fraction form
    19,424.31/29,108.88 = 8,868.39/x
  3. Step 3: Cross multiply
    19,424.31x = 29,108.88 × 8,868.39
  4. Step 4: Simplify right side
    19,424.31x = 258,148,900.30
  5. Step 5: Solve for x
    x = 258,148,900.30/19,424.31
  6. Step 6: Final answer
    x = 13,289.99

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