Finding the Fourth Proportional to 22,113, 30,516.21 and 12,682.44

Step by Step Solution

1. Step 1: Write the proportion equation
   22,113 : 30,516.21 = 12,682.44 : x
2. Step 2: Convert to fraction form
   22,113/30,516.21 = 12,682.44/x
3. Step 3: Cross multiply
   22,113x = 30,516.21 × 12,682.44
4. Step 4: Simplify right side
   22,113x = 387,020,002.35
5. Step 5: Solve for x
   x = 387,020,002.35/22,113
6. Step 6: Final answer
   x = 17,501.92