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Finding the Fourth Proportional to 10,495.76, 15,739.18 and 4,257.14

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Solution

The fourth proportional to 10,495.76, 15,739.18 and 4,257.14 is: 6,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,495.76 : 15,739.18 = 4,257.14 : x
  2. Step 2: Convert to fraction form
    10,495.76/15,739.18 = 4,257.14/x
  3. Step 3: Cross multiply
    10,495.76x = 15,739.18 × 4,257.14
  4. Step 4: Simplify right side
    10,495.76x = 67,003,892.75
  5. Step 5: Solve for x
    x = 67,003,892.75/10,495.76
  6. Step 6: Final answer
    x = 6,383.90

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