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Finding the Fourth Proportional to 8,933.60, 13,368.72 and 5,811.68

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Solution

The fourth proportional to 8,933.60, 13,368.72 and 5,811.68 is: 8,696.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,933.60 : 13,368.72 = 5,811.68 : x
  2. Step 2: Convert to fraction form
    8,933.60/13,368.72 = 5,811.68/x
  3. Step 3: Cross multiply
    8,933.60x = 13,368.72 × 5,811.68
  4. Step 4: Simplify right side
    8,933.60x = 77,694,722.65
  5. Step 5: Solve for x
    x = 77,694,722.65/8,933.60
  6. Step 6: Final answer
    x = 8,696.91

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