Finding the Fourth Proportional to 52,557.80, 72,529.25 and 28,684.27

Step by Step Solution

1. Step 1: Write the proportion equation
   52,557.80 : 72,529.25 = 28,684.27 : x
2. Step 2: Convert to fraction form
   52,557.80/72,529.25 = 28,684.27/x
3. Step 3: Cross multiply
   52,557.80x = 72,529.25 × 28,684.27
4. Step 4: Simplify right side
   52,557.80x = 2,080,448,265.15
5. Step 5: Solve for x
   x = 2,080,448,265.15/52,557.80
6. Step 6: Final answer
   x = 39,584.00