Finding the Fourth Proportional to 52,410.78, 72,324.71 and 28,537.40

Step by Step Solution

1. Step 1: Write the proportion equation
   52,410.78 : 72,324.71 = 28,537.40 : x
2. Step 2: Convert to fraction form
   52,410.78/72,324.71 = 28,537.40/x
3. Step 3: Cross multiply
   52,410.78x = 72,324.71 × 28,537.40
4. Step 4: Simplify right side
   52,410.78x = 2,063,959,179.15
5. Step 5: Solve for x
   x = 2,063,959,179.15/52,410.78
6. Step 6: Final answer
   x = 39,380.43