Finding the Fourth Proportional to 52,577.46, 72,555.89 and 28,704.29

Step by Step Solution

1. Step 1: Write the proportion equation
   52,577.46 : 72,555.89 = 28,704.29 : x
2. Step 2: Convert to fraction form
   52,577.46/72,555.89 = 28,704.29/x
3. Step 3: Cross multiply
   52,577.46x = 72,555.89 × 28,704.29
4. Step 4: Simplify right side
   52,577.46x = 2,082,664,801.47
5. Step 5: Solve for x
   x = 2,082,664,801.47/52,577.46
6. Step 6: Final answer
   x = 39,611.36