Finding the Fourth Proportional to 167,581.71, 231,264.27 and 91,100.96

Step by Step Solution

1. Step 1: Write the proportion equation
   167,581.71 : 231,264.27 = 91,100.96 : x
2. Step 2: Convert to fraction form
   167,581.71/231,264.27 = 91,100.96/x
3. Step 3: Cross multiply
   167,581.71x = 231,264.27 × 91,100.96
4. Step 4: Simplify right side
   167,581.71x = 21,068,397,010.70
5. Step 5: Solve for x
   x = 21,068,397,010.70/167,581.71
6. Step 6: Final answer
   x = 125,720.15