Finding the Fourth Proportional to 22,081.16, 30,472.79 and 12,651.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,081.16 : 30,472.79 = 12,651.55 : x
2. Step 2: Convert to fraction form
   22,081.16/30,472.79 = 12,651.55/x
3. Step 3: Cross multiply
   22,081.16x = 30,472.79 × 12,651.55
4. Step 4: Simplify right side
   22,081.16x = 385,527,886.88
5. Step 5: Solve for x
   x = 385,527,886.88/22,081.16
6. Step 6: Final answer
   x = 17,459.58