Finding the Fourth Proportional to 123,505.42, 170,435.24 and 69,789.29

Step by Step Solution

1. Step 1: Write the proportion equation
   123,505.42 : 170,435.24 = 69,789.29 : x
2. Step 2: Convert to fraction form
   123,505.42/170,435.24 = 69,789.29/x
3. Step 3: Cross multiply
   123,505.42x = 170,435.24 × 69,789.29
4. Step 4: Simplify right side
   123,505.42x = 11,894,554,390.58
5. Step 5: Solve for x
   x = 11,894,554,390.58/123,505.42
6. Step 6: Final answer
   x = 96,307.95