Finding the Fourth Proportional to 123,995.78, 171,102.17 and 69,550.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123,995.78 : 171,102.17 = 69,550.10 : x
2. Step 2: Convert to fraction form
   123,995.78/171,102.17 = 69,550.10/x
3. Step 3: Cross multiply
   123,995.78x = 171,102.17 × 69,550.10
4. Step 4: Simplify right side
   123,995.78x = 11,900,172,352.08
5. Step 5: Solve for x
   x = 11,900,172,352.08/123,995.78
6. Step 6: Final answer
   x = 95,972.40