Finding the Fourth Proportional to 52,450.64, 72,382.71 and 28,577.31

Step by Step Solution

1. Step 1: Write the proportion equation
   52,450.64 : 72,382.71 = 28,577.31 : x
2. Step 2: Convert to fraction form
   52,450.64/72,382.71 = 28,577.31/x
3. Step 3: Cross multiply
   52,450.64x = 72,382.71 × 28,577.31
4. Step 4: Simplify right side
   52,450.64x = 2,068,503,142.31
5. Step 5: Solve for x
   x = 2,068,503,142.31/52,450.64
6. Step 6: Final answer
   x = 39,437.14