Finding the Fourth Proportional to 22,422.54, 30,719.03 and 21,581.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,422.54 : 30,719.03 = 21,581.76 : x
2. Step 2: Convert to fraction form
   22,422.54/30,719.03 = 21,581.76/x
3. Step 3: Cross multiply
   22,422.54x = 30,719.03 × 21,581.76
4. Step 4: Simplify right side
   22,422.54x = 662,970,732.89
5. Step 5: Solve for x
   x = 662,970,732.89/22,422.54
6. Step 6: Final answer
   x = 29,567.16