Finding the Fourth Proportional to 78,411.78, 117,617.49 and 34,032.78

Step by Step Solution

1. Step 1: Write the proportion equation
   78,411.78 : 117,617.49 = 34,032.78 : x
2. Step 2: Convert to fraction form
   78,411.78/117,617.49 = 34,032.78/x
3. Step 3: Cross multiply
   78,411.78x = 117,617.49 × 34,032.78
4. Step 4: Simplify right side
   78,411.78x = 4,002,850,161.32
5. Step 5: Solve for x
   x = 4,002,850,161.32/78,411.78
6. Step 6: Final answer
   x = 51,049.09