Finding the Fourth Proportional to 123,233.56, 170,062.32 and 66,644.92

Step by Step Solution

1. Step 1: Write the proportion equation
   123,233.56 : 170,062.32 = 66,644.92 : x
2. Step 2: Convert to fraction form
   123,233.56/170,062.32 = 66,644.92/x
3. Step 3: Cross multiply
   123,233.56x = 170,062.32 × 66,644.92
4. Step 4: Simplify right side
   123,233.56x = 11,333,789,711.41
5. Step 5: Solve for x
   x = 11,333,789,711.41/123,233.56
6. Step 6: Final answer
   x = 91,969.99