Finding the Fourth Proportional to 123,656.32, 170,645.71 and 69,940.18

Step by Step Solution

1. Step 1: Write the proportion equation
   123,656.32 : 170,645.71 = 69,940.18 : x
2. Step 2: Convert to fraction form
   123,656.32/170,645.71 = 69,940.18/x
3. Step 3: Cross multiply
   123,656.32x = 170,645.71 × 69,940.18
4. Step 4: Simplify right side
   123,656.32x = 11,934,991,673.63
5. Step 5: Solve for x
   x = 11,934,991,673.63/123,656.32
6. Step 6: Final answer
   x = 96,517.44