Finding the Fourth Proportional to 52,158.29, 71,978.51 and 28,284.80

Step by Step Solution

1. Step 1: Write the proportion equation
   52,158.29 : 71,978.51 = 28,284.80 : x
2. Step 2: Convert to fraction form
   52,158.29/71,978.51 = 28,284.80/x
3. Step 3: Cross multiply
   52,158.29x = 71,978.51 × 28,284.80
4. Step 4: Simplify right side
   52,158.29x = 2,035,897,470.47
5. Step 5: Solve for x
   x = 2,035,897,470.47/52,158.29
6. Step 6: Final answer
   x = 39,033.06