Finding the Fourth Proportional to 123,294.72, 170,146.05 and 69,597.20

Step by Step Solution

1. Step 1: Write the proportion equation
   123,294.72 : 170,146.05 = 69,597.20 : x
2. Step 2: Convert to fraction form
   123,294.72/170,146.05 = 69,597.20/x
3. Step 3: Cross multiply
   123,294.72x = 170,146.05 × 69,597.20
4. Step 4: Simplify right side
   123,294.72x = 11,841,687,820.33
5. Step 5: Solve for x
   x = 11,841,687,820.33/123,294.72
6. Step 6: Final answer
   x = 96,043.75