Finding the Fourth Proportional to 22,225.58, 30,672.12 and 12,153.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,225.58 : 30,672.12 = 12,153.42 : x
2. Step 2: Convert to fraction form
   22,225.58/30,672.12 = 12,153.42/x
3. Step 3: Cross multiply
   22,225.58x = 30,672.12 × 12,153.42
4. Step 4: Simplify right side
   22,225.58x = 372,771,156.65
5. Step 5: Solve for x
   x = 372,771,156.65/22,225.58
6. Step 6: Final answer
   x = 16,772.17