Finding the Fourth Proportional to 123,454.72, 170,366.72 and 69,757.12

Step by Step Solution

1. Step 1: Write the proportion equation
   123,454.72 : 170,366.72 = 69,757.12 : x
2. Step 2: Convert to fraction form
   123,454.72/170,366.72 = 69,757.12/x
3. Step 3: Cross multiply
   123,454.72x = 170,366.72 × 69,757.12
4. Step 4: Simplify right side
   123,454.72x = 11,884,291,731.05
5. Step 5: Solve for x
   x = 11,884,291,731.05/123,454.72
6. Step 6: Final answer
   x = 96,264.38