Finding the Fourth Proportional to 52,131.31, 71,941.41 and 28,257.91

Step by Step Solution

1. Step 1: Write the proportion equation
   52,131.31 : 71,941.41 = 28,257.91 : x
2. Step 2: Convert to fraction form
   52,131.31/71,941.41 = 28,257.91/x
3. Step 3: Cross multiply
   52,131.31x = 71,941.41 × 28,257.91
4. Step 4: Simplify right side
   52,131.31x = 2,032,913,889.05
5. Step 5: Solve for x
   x = 2,032,913,889.05/52,131.31
6. Step 6: Final answer
   x = 38,996.03