Finding the Fourth Proportional to 123,012.56, 169,761.76 and 68,569.60

Step by Step Solution

1. Step 1: Write the proportion equation
   123,012.56 : 169,761.76 = 68,569.60 : x
2. Step 2: Convert to fraction form
   123,012.56/169,761.76 = 68,569.60/x
3. Step 3: Cross multiply
   123,012.56x = 169,761.76 × 68,569.60
4. Step 4: Simplify right side
   123,012.56x = 11,640,495,978.50
5. Step 5: Solve for x
   x = 11,640,495,978.50/123,012.56
6. Step 6: Final answer
   x = 94,628.52