Finding the Fourth Proportional to 22,194.72, 30,630.24 and 12,762.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,194.72 : 30,630.24 = 12,762.72 : x
2. Step 2: Convert to fraction form
   22,194.72/30,630.24 = 12,762.72/x
3. Step 3: Cross multiply
   22,194.72x = 30,630.24 × 12,762.72
4. Step 4: Simplify right side
   22,194.72x = 390,925,176.65
5. Step 5: Solve for x
   x = 390,925,176.65/22,194.72
6. Step 6: Final answer
   x = 17,613.43