Finding the Fourth Proportional to 124,433.69, 171,733.29 and 78,559.97

Step by Step Solution

1. Step 1: Write the proportion equation
   124,433.69 : 171,733.29 = 78,559.97 : x
2. Step 2: Convert to fraction form
   124,433.69/171,733.29 = 78,559.97/x
3. Step 3: Cross multiply
   124,433.69x = 171,733.29 × 78,559.97
4. Step 4: Simplify right side
   124,433.69x = 13,491,362,110.40
5. Step 5: Solve for x
   x = 13,491,362,110.40/124,433.69
6. Step 6: Final answer
   x = 108,422.10