Finding the Fourth Proportional to 123,082.72, 169,854.24 and 66,494.08

Step by Step Solution

1. Step 1: Write the proportion equation
   123,082.72 : 169,854.24 = 66,494.08 : x
2. Step 2: Convert to fraction form
   123,082.72/169,854.24 = 66,494.08/x
3. Step 3: Cross multiply
   123,082.72x = 169,854.24 × 66,494.08
4. Step 4: Simplify right side
   123,082.72x = 11,294,301,422.90
5. Step 5: Solve for x
   x = 11,294,301,422.90/123,082.72
6. Step 6: Final answer
   x = 91,761.88