Finding the Fourth Proportional to 123,916.50, 171,004.17 and 70,201.39

Step by Step Solution

1. Step 1: Write the proportion equation
   123,916.50 : 171,004.17 = 70,201.39 : x
2. Step 2: Convert to fraction form
   123,916.50/171,004.17 = 70,201.39/x
3. Step 3: Cross multiply
   123,916.50x = 171,004.17 × 70,201.39
4. Step 4: Simplify right side
   123,916.50x = 12,004,730,002.29
5. Step 5: Solve for x
   x = 12,004,730,002.29/123,916.50
6. Step 6: Final answer
   x = 96,877.57