Finding the Fourth Proportional to 123,404.90, 170,288.93 and 69,695.15

Step by Step Solution

1. Step 1: Write the proportion equation
   123,404.90 : 170,288.93 = 69,695.15 : x
2. Step 2: Convert to fraction form
   123,404.90/170,288.93 = 69,695.15/x
3. Step 3: Cross multiply
   123,404.90x = 170,288.93 × 69,695.15
4. Step 4: Simplify right side
   123,404.90x = 11,868,311,842.48
5. Step 5: Solve for x
   x = 11,868,311,842.48/123,404.90
6. Step 6: Final answer
   x = 96,173.75