Finding the Fourth Proportional to 123,654.56, 170,643.31 and 69,938.43

Step by Step Solution

1. Step 1: Write the proportion equation
   123,654.56 : 170,643.31 = 69,938.43 : x
2. Step 2: Convert to fraction form
   123,654.56/170,643.31 = 69,938.43/x
3. Step 3: Cross multiply
   123,654.56x = 170,643.31 × 69,938.43
4. Step 4: Simplify right side
   123,654.56x = 11,934,525,016.56
5. Step 5: Solve for x
   x = 11,934,525,016.56/123,654.56
6. Step 6: Final answer
   x = 96,515.04