Finding the Fourth Proportional to 52,569.12, 72,544.32 and 28,695.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,569.12 : 72,544.32 = 28,695.72 : x
2. Step 2: Convert to fraction form
   52,569.12/72,544.32 = 28,695.72/x
3. Step 3: Cross multiply
   52,569.12x = 72,544.32 × 28,695.72
4. Step 4: Simplify right side
   52,569.12x = 2,081,711,494.31
5. Step 5: Solve for x
   x = 2,081,711,494.31/52,569.12
6. Step 6: Final answer
   x = 39,599.51