Finding the Fourth Proportional to 78,560.50, 117,859.20 and 25,969.98

Step by Step Solution

1. Step 1: Write the proportion equation
   78,560.50 : 117,859.20 = 25,969.98 : x
2. Step 2: Convert to fraction form
   78,560.50/117,859.20 = 25,969.98/x
3. Step 3: Cross multiply
   78,560.50x = 117,859.20 × 25,969.98
4. Step 4: Simplify right side
   78,560.50x = 3,060,801,066.82
5. Step 5: Solve for x
   x = 3,060,801,066.82/78,560.50
6. Step 6: Final answer
   x = 38,961.07