Finding the Fourth Proportional to 215,160.50, 296,921.50 and 125,736.50

Step by Step Solution

1. Step 1: Write the proportion equation
   215,160.50 : 296,921.50 = 125,736.50 : x
2. Step 2: Convert to fraction form
   215,160.50/296,921.50 = 125,736.50/x
3. Step 3: Cross multiply
   215,160.50x = 296,921.50 × 125,736.50
4. Step 4: Simplify right side
   215,160.50x = 37,333,870,184.75
5. Step 5: Solve for x
   x = 37,333,870,184.75/215,160.50
6. Step 6: Final answer
   x = 173,516.38