Finding the Fourth Proportional to 112,630.70, 155,414.98 and 67,299.10

Step by Step Solution

1. Step 1: Write the proportion equation
   112,630.70 : 155,414.98 = 67,299.10 : x
2. Step 2: Convert to fraction form
   112,630.70/155,414.98 = 67,299.10/x
3. Step 3: Cross multiply
   112,630.70x = 155,414.98 × 67,299.10
4. Step 4: Simplify right side
   112,630.70x = 10,459,288,280.52
5. Step 5: Solve for x
   x = 10,459,288,280.52/112,630.70
6. Step 6: Final answer
   x = 92,863.56