Finding the Fourth Proportional to 22,061.72, 30,444.98 and 13,445.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,061.72 : 30,444.98 = 13,445.42 : x
2. Step 2: Convert to fraction form
   22,061.72/30,444.98 = 13,445.42/x
3. Step 3: Cross multiply
   22,061.72x = 30,444.98 × 13,445.42
4. Step 4: Simplify right side
   22,061.72x = 409,345,542.99
5. Step 5: Solve for x
   x = 409,345,542.99/22,061.72
6. Step 6: Final answer
   x = 18,554.56