Finding the Fourth Proportional to 123,522.88, 170,371.56 and 78,208.24

Step by Step Solution

1. Step 1: Write the proportion equation
   123,522.88 : 170,371.56 = 78,208.24 : x
2. Step 2: Convert to fraction form
   123,522.88/170,371.56 = 78,208.24/x
3. Step 3: Cross multiply
   123,522.88x = 170,371.56 × 78,208.24
4. Step 4: Simplify right side
   123,522.88x = 13,324,459,853.65
5. Step 5: Solve for x
   x = 13,324,459,853.65/123,522.88
6. Step 6: Final answer
   x = 107,870.38