Finding the Fourth Proportional to 123,291.52, 170,145.01 and 68,100.70

Step by Step Solution

1. Step 1: Write the proportion equation
   123,291.52 : 170,145.01 = 68,100.70 : x
2. Step 2: Convert to fraction form
   123,291.52/170,145.01 = 68,100.70/x
3. Step 3: Cross multiply
   123,291.52x = 170,145.01 × 68,100.70
4. Step 4: Simplify right side
   123,291.52x = 11,586,993,878.23
5. Step 5: Solve for x
   x = 11,586,993,878.23/123,291.52
6. Step 6: Final answer
   x = 93,980.46