Finding the Fourth Proportional to 293,151.78, 439,728.27 and 71,535.78

Step by Step Solution

1. Step 1: Write the proportion equation
   293,151.78 : 439,728.27 = 71,535.78 : x
2. Step 2: Convert to fraction form
   293,151.78/439,728.27 = 71,535.78/x
3. Step 3: Cross multiply
   293,151.78x = 439,728.27 × 71,535.78
4. Step 4: Simplify right side
   293,151.78x = 31,456,304,782.50
5. Step 5: Solve for x
   x = 31,456,304,782.50/293,151.78
6. Step 6: Final answer
   x = 107,303.82