Finding the Fourth Proportional to 123,085.52, 169,830.60 and 75,335.12

Step by Step Solution

1. Step 1: Write the proportion equation
   123,085.52 : 169,830.60 = 75,335.12 : x
2. Step 2: Convert to fraction form
   123,085.52/169,830.60 = 75,335.12/x
3. Step 3: Cross multiply
   123,085.52x = 169,830.60 × 75,335.12
4. Step 4: Simplify right side
   123,085.52x = 12,794,208,630.67
5. Step 5: Solve for x
   x = 12,794,208,630.67/123,085.52
6. Step 6: Final answer
   x = 103,945.68