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Finding the Fourth Proportional to 30,978.74, 46,468.05 and 8,792.33

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Solution

The fourth proportional to 30,978.74, 46,468.05 and 8,792.33 is: 13,188.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,978.74 : 46,468.05 = 8,792.33 : x
  2. Step 2: Convert to fraction form
    30,978.74/46,468.05 = 8,792.33/x
  3. Step 3: Cross multiply
    30,978.74x = 46,468.05 × 8,792.33
  4. Step 4: Simplify right side
    30,978.74x = 408,562,197.72
  5. Step 5: Solve for x
    x = 408,562,197.72/30,978.74
  6. Step 6: Final answer
    x = 13,188.47

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