Finding the Fourth Proportional to 123,989.33, 171,106.98 and 67,401.92

Step by Step Solution

1. Step 1: Write the proportion equation
   123,989.33 : 171,106.98 = 67,401.92 : x
2. Step 2: Convert to fraction form
   123,989.33/171,106.98 = 67,401.92/x
3. Step 3: Cross multiply
   123,989.33x = 171,106.98 × 67,401.92
4. Step 4: Simplify right side
   123,989.33x = 11,532,938,977.40
5. Step 5: Solve for x
   x = 11,532,938,977.40/123,989.33
6. Step 6: Final answer
   x = 93,015.58