Finding the Fourth Proportional to 78,535.97, 117,803.41 and 31,788.17

Step by Step Solution

1. Step 1: Write the proportion equation
   78,535.97 : 117,803.41 = 31,788.17 : x
2. Step 2: Convert to fraction form
   78,535.97/117,803.41 = 31,788.17/x
3. Step 3: Cross multiply
   78,535.97x = 117,803.41 × 31,788.17
4. Step 4: Simplify right side
   78,535.97x = 3,744,754,664.72
5. Step 5: Solve for x
   x = 3,744,754,664.72/78,535.97
6. Step 6: Final answer
   x = 47,682.03