Finding the Fourth Proportional to 157,407.27, 217,227.89 and 89,435.77

Step by Step Solution

1. Step 1: Write the proportion equation
   157,407.27 : 217,227.89 = 89,435.77 : x
2. Step 2: Convert to fraction form
   157,407.27/217,227.89 = 89,435.77/x
3. Step 3: Cross multiply
   157,407.27x = 217,227.89 × 89,435.77
4. Step 4: Simplify right side
   157,407.27x = 19,427,943,288.15
5. Step 5: Solve for x
   x = 19,427,943,288.15/157,407.27
6. Step 6: Final answer
   x = 123,424.69