Finding the Fourth Proportional to 123,494.88, 170,426.31 and 69,778.83

Step by Step Solution

1. Step 1: Write the proportion equation
   123,494.88 : 170,426.31 = 69,778.83 : x
2. Step 2: Convert to fraction form
   123,494.88/170,426.31 = 69,778.83/x
3. Step 3: Cross multiply
   123,494.88x = 170,426.31 × 69,778.83
4. Step 4: Simplify right side
   123,494.88x = 11,892,148,513.02
5. Step 5: Solve for x
   x = 11,892,148,513.02/123,494.88
6. Step 6: Final answer
   x = 96,296.69