Finding the Fourth Proportional to 81,060.50, 121,591.29 and 25,656.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,060.50 : 121,591.29 = 25,656.50 : x
2. Step 2: Convert to fraction form
   81,060.50/121,591.29 = 25,656.50/x
3. Step 3: Cross multiply
   81,060.50x = 121,591.29 × 25,656.50
4. Step 4: Simplify right side
   81,060.50x = 3,119,606,931.89
5. Step 5: Solve for x
   x = 3,119,606,931.89/81,060.50
6. Step 6: Final answer
   x = 38,484.92