Finding the Fourth Proportional to 123,999.58, 171,132.78 and 70,278.82

Step by Step Solution

1. Step 1: Write the proportion equation
   123,999.58 : 171,132.78 = 70,278.82 : x
2. Step 2: Convert to fraction form
   123,999.58/171,132.78 = 70,278.82/x
3. Step 3: Cross multiply
   123,999.58x = 171,132.78 × 70,278.82
4. Step 4: Simplify right side
   123,999.58x = 12,027,010,640.06
5. Step 5: Solve for x
   x = 12,027,010,640.06/123,999.58
6. Step 6: Final answer
   x = 96,992.35