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Finding the Fourth Proportional to 12,430.29, 18,645.44 and 8,522.85

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Solution

The fourth proportional to 12,430.29, 18,645.44 and 8,522.85 is: 12,784.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.29 : 18,645.44 = 8,522.85 : x
  2. Step 2: Convert to fraction form
    12,430.29/18,645.44 = 8,522.85/x
  3. Step 3: Cross multiply
    12,430.29x = 18,645.44 × 8,522.85
  4. Step 4: Simplify right side
    12,430.29x = 158,912,288.30
  5. Step 5: Solve for x
    x = 158,912,288.30/12,430.29
  6. Step 6: Final answer
    x = 12,784.28

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