Finding the Fourth Proportional to 22,147.99, 30,566.60 and 13,648.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,147.99 : 30,566.60 = 13,648.30 : x
2. Step 2: Convert to fraction form
   22,147.99/30,566.60 = 13,648.30/x
3. Step 3: Cross multiply
   22,147.99x = 30,566.60 × 13,648.30
4. Step 4: Simplify right side
   22,147.99x = 417,182,126.78
5. Step 5: Solve for x
   x = 417,182,126.78/22,147.99
6. Step 6: Final answer
   x = 18,836.12