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Finding the Fourth Proportional to 18,861.93, 28,297.08 and 7,175.25

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Solution

The fourth proportional to 18,861.93, 28,297.08 and 7,175.25 is: 10,764.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861.93 : 28,297.08 = 7,175.25 : x
  2. Step 2: Convert to fraction form
    18,861.93/28,297.08 = 7,175.25/x
  3. Step 3: Cross multiply
    18,861.93x = 28,297.08 × 7,175.25
  4. Step 4: Simplify right side
    18,861.93x = 203,038,623.27
  5. Step 5: Solve for x
    x = 203,038,623.27/18,861.93
  6. Step 6: Final answer
    x = 10,764.47

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