Finding the Fourth Proportional to 113,648.31, 156,803.18 and 65,250

Step by Step Solution

1. Step 1: Write the proportion equation
   113,648.31 : 156,803.18 = 65,250 : x
2. Step 2: Convert to fraction form
   113,648.31/156,803.18 = 65,250/x
3. Step 3: Cross multiply
   113,648.31x = 156,803.18 × 65,250
4. Step 4: Simplify right side
   113,648.31x = 10,231,407,168.75
5. Step 5: Solve for x
   x = 10,231,407,168.75/113,648.31
6. Step 6: Final answer
   x = 90,026.92