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Finding the Fourth Proportional to 10,617.66, 15,931.35 and 4,771.08

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Solution

The fourth proportional to 10,617.66, 15,931.35 and 4,771.08 is: 7,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,617.66 : 15,931.35 = 4,771.08 : x
  2. Step 2: Convert to fraction form
    10,617.66/15,931.35 = 4,771.08/x
  3. Step 3: Cross multiply
    10,617.66x = 15,931.35 × 4,771.08
  4. Step 4: Simplify right side
    10,617.66x = 76,009,745.36
  5. Step 5: Solve for x
    x = 76,009,745.36/10,617.66
  6. Step 6: Final answer
    x = 7,158.80

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