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Finding the Fourth Proportional to 5,928.80, 8,893.20 and 5,199.20

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Solution

The fourth proportional to 5,928.80, 8,893.20 and 5,199.20 is: 7,798.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,928.80 : 8,893.20 = 5,199.20 : x
  2. Step 2: Convert to fraction form
    5,928.80/8,893.20 = 5,199.20/x
  3. Step 3: Cross multiply
    5,928.80x = 8,893.20 × 5,199.20
  4. Step 4: Simplify right side
    5,928.80x = 46,237,525.44
  5. Step 5: Solve for x
    x = 46,237,525.44/5,928.80
  6. Step 6: Final answer
    x = 7,798.80

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