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Finding the Fourth Proportional to 8,956.37, 12,359.79 and 4,977.86

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Solution

The fourth proportional to 8,956.37, 12,359.79 and 4,977.86 is: 6,869.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.37 : 12,359.79 = 4,977.86 : x
  2. Step 2: Convert to fraction form
    8,956.37/12,359.79 = 4,977.86/x
  3. Step 3: Cross multiply
    8,956.37x = 12,359.79 × 4,977.86
  4. Step 4: Simplify right side
    8,956.37x = 61,525,242.45
  5. Step 5: Solve for x
    x = 61,525,242.45/8,956.37
  6. Step 6: Final answer
    x = 6,869.44

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