Finding the Fourth Proportional to 22,113.52, 30,516.90 and 12,682.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,113.52 : 30,516.90 = 12,682.96 : x
2. Step 2: Convert to fraction form
   22,113.52/30,516.90 = 12,682.96/x
3. Step 3: Cross multiply
   22,113.52x = 30,516.90 × 12,682.96
4. Step 4: Simplify right side
   22,113.52x = 387,044,622.02
5. Step 5: Solve for x
   x = 387,044,622.02/22,113.52
6. Step 6: Final answer
   x = 17,502.62