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Finding the Fourth Proportional to 68,903.56, 103,174.91 and 45,136.34

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Solution

The fourth proportional to 68,903.56, 103,174.91 and 45,136.34 is: 67,586.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,903.56 : 103,174.91 = 45,136.34 : x
  2. Step 2: Convert to fraction form
    68,903.56/103,174.91 = 45,136.34/x
  3. Step 3: Cross multiply
    68,903.56x = 103,174.91 × 45,136.34
  4. Step 4: Simplify right side
    68,903.56x = 4,656,937,885.73
  5. Step 5: Solve for x
    x = 4,656,937,885.73/68,903.56
  6. Step 6: Final answer
    x = 67,586.32

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