Finding the Fourth Proportional to 124,499.92, 171,810.43 and 67,912.51

Step by Step Solution

1. Step 1: Write the proportion equation
   124,499.92 : 171,810.43 = 67,912.51 : x
2. Step 2: Convert to fraction form
   124,499.92/171,810.43 = 67,912.51/x
3. Step 3: Cross multiply
   124,499.92x = 171,810.43 × 67,912.51
4. Step 4: Simplify right side
   124,499.92x = 11,668,077,545.48
5. Step 5: Solve for x
   x = 11,668,077,545.48/124,499.92
6. Step 6: Final answer
   x = 93,719.56