Finding the Fourth Proportional to 123,654.30, 170,640.90 and 69,937.29

Step by Step Solution

1. Step 1: Write the proportion equation
   123,654.30 : 170,640.90 = 69,937.29 : x
2. Step 2: Convert to fraction form
   123,654.30/170,640.90 = 69,937.29/x
3. Step 3: Cross multiply
   123,654.30x = 170,640.90 × 69,937.29
4. Step 4: Simplify right side
   123,654.30x = 11,934,162,109.16
5. Step 5: Solve for x
   x = 11,934,162,109.16/123,654.30
6. Step 6: Final answer
   x = 96,512.31