Finding the Fourth Proportional to 78,410.68, 117,571.74 and 25,806.04

Step by Step Solution

1. Step 1: Write the proportion equation
   78,410.68 : 117,571.74 = 25,806.04 : x
2. Step 2: Convert to fraction form
   78,410.68/117,571.74 = 25,806.04/x
3. Step 3: Cross multiply
   78,410.68x = 117,571.74 × 25,806.04
4. Step 4: Simplify right side
   78,410.68x = 3,034,061,025.31
5. Step 5: Solve for x
   x = 3,034,061,025.31/78,410.68
6. Step 6: Final answer
   x = 38,694.49