Finding the Fourth Proportional to 123,116.50, 169,858.34 and 74,733.68

Step by Step Solution

1. Step 1: Write the proportion equation
   123,116.50 : 169,858.34 = 74,733.68 : x
2. Step 2: Convert to fraction form
   123,116.50/169,858.34 = 74,733.68/x
3. Step 3: Cross multiply
   123,116.50x = 169,858.34 × 74,733.68
4. Step 4: Simplify right side
   123,116.50x = 12,694,138,826.89
5. Step 5: Solve for x
   x = 12,694,138,826.89/123,116.50
6. Step 6: Final answer
   x = 103,106.72