Finding the Fourth Proportional to 22,381.16, 30,886.88 and 12,822.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,381.16 : 30,886.88 = 12,822.56 : x
2. Step 2: Convert to fraction form
   22,381.16/30,886.88 = 12,822.56/x
3. Step 3: Cross multiply
   22,381.16x = 30,886.88 × 12,822.56
4. Step 4: Simplify right side
   22,381.16x = 396,048,872.01
5. Step 5: Solve for x
   x = 396,048,872.01/22,381.16
6. Step 6: Final answer
   x = 17,695.64