Finding the Fourth Proportional to 22,111.16, 30,502.30 and 15,827.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,111.16 : 30,502.30 = 15,827.20 : x
2. Step 2: Convert to fraction form
   22,111.16/30,502.30 = 15,827.20/x
3. Step 3: Cross multiply
   22,111.16x = 30,502.30 × 15,827.20
4. Step 4: Simplify right side
   22,111.16x = 482,766,002.56
5. Step 5: Solve for x
   x = 482,766,002.56/22,111.16
6. Step 6: Final answer
   x = 21,833.59