Finding the Fourth Proportional to 22,229.60, 30,676.88 and 12,158.01

Step by Step Solution

1. Step 1: Write the proportion equation
   22,229.60 : 30,676.88 = 12,158.01 : x
2. Step 2: Convert to fraction form
   22,229.60/30,676.88 = 12,158.01/x
3. Step 3: Cross multiply
   22,229.60x = 30,676.88 × 12,158.01
4. Step 4: Simplify right side
   22,229.60x = 372,969,844.20
5. Step 5: Solve for x
   x = 372,969,844.20/22,229.60
6. Step 6: Final answer
   x = 16,778.08