Finding the Fourth Proportional to 69,411.86, 95,782.58 and 40,728.54

Step by Step Solution

1. Step 1: Write the proportion equation
   69,411.86 : 95,782.58 = 40,728.54 : x
2. Step 2: Convert to fraction form
   69,411.86/95,782.58 = 40,728.54/x
3. Step 3: Cross multiply
   69,411.86x = 95,782.58 × 40,728.54
4. Step 4: Simplify right side
   69,411.86x = 3,901,084,640.83
5. Step 5: Solve for x
   x = 3,901,084,640.83/69,411.86
6. Step 6: Final answer
   x = 56,201.99