Finding the Fourth Proportional to 123,591.15, 170,566.43 and 69,885.72

Step by Step Solution

1. Step 1: Write the proportion equation
   123,591.15 : 170,566.43 = 69,885.72 : x
2. Step 2: Convert to fraction form
   123,591.15/170,566.43 = 69,885.72/x
3. Step 3: Cross multiply
   123,591.15x = 170,566.43 × 69,885.72
4. Step 4: Simplify right side
   123,591.15x = 11,920,157,418.95
5. Step 5: Solve for x
   x = 11,920,157,418.95/123,591.15
6. Step 6: Final answer
   x = 96,448.31