Finding the Fourth Proportional to 52,390.53, 72,297.50 and 28,516.59

Step by Step Solution

1. Step 1: Write the proportion equation
   52,390.53 : 72,297.50 = 28,516.59 : x
2. Step 2: Convert to fraction form
   52,390.53/72,297.50 = 28,516.59/x
3. Step 3: Cross multiply
   52,390.53x = 72,297.50 × 28,516.59
4. Step 4: Simplify right side
   52,390.53x = 2,061,678,022.94
5. Step 5: Solve for x
   x = 2,061,678,022.94/52,390.53
6. Step 6: Final answer
   x = 39,352.11