Finding the Fourth Proportional to 123,940.97, 171,038.06 and 70,236.21

Step by Step Solution

1. Step 1: Write the proportion equation
   123,940.97 : 171,038.06 = 70,236.21 : x
2. Step 2: Convert to fraction form
   123,940.97/171,038.06 = 70,236.21/x
3. Step 3: Cross multiply
   123,940.97x = 171,038.06 × 70,236.21
4. Step 4: Simplify right side
   123,940.97x = 12,013,065,100.15
5. Step 5: Solve for x
   x = 12,013,065,100.15/123,940.97
6. Step 6: Final answer
   x = 96,925.70