Finding the Fourth Proportional to 123,407.82, 170,303.31 and 69,693.48

Step by Step Solution

1. Step 1: Write the proportion equation
   123,407.82 : 170,303.31 = 69,693.48 : x
2. Step 2: Convert to fraction form
   123,407.82/170,303.31 = 69,693.48/x
3. Step 3: Cross multiply
   123,407.82x = 170,303.31 × 69,693.48
4. Step 4: Simplify right side
   123,407.82x = 11,869,030,329.42
5. Step 5: Solve for x
   x = 11,869,030,329.42/123,407.82
6. Step 6: Final answer
   x = 96,177.30