Finding the Fourth Proportional to 123,920.50, 170,932.25 and 98,829.94

Step by Step Solution

1. Step 1: Write the proportion equation
   123,920.50 : 170,932.25 = 98,829.94 : x
2. Step 2: Convert to fraction form
   123,920.50/170,932.25 = 98,829.94/x
3. Step 3: Cross multiply
   123,920.50x = 170,932.25 × 98,829.94
4. Step 4: Simplify right side
   123,920.50x = 16,893,224,011.57
5. Step 5: Solve for x
   x = 16,893,224,011.57/123,920.50
6. Step 6: Final answer
   x = 136,323.08