Finding the Fourth Proportional to 22,101.86, 30,509.42 and 13,147.63

Step by Step Solution

1. Step 1: Write the proportion equation
   22,101.86 : 30,509.42 = 13,147.63 : x
2. Step 2: Convert to fraction form
   22,101.86/30,509.42 = 13,147.63/x
3. Step 3: Cross multiply
   22,101.86x = 30,509.42 × 13,147.63
4. Step 4: Simplify right side
   22,101.86x = 401,126,517.41
5. Step 5: Solve for x
   x = 401,126,517.41/22,101.86
6. Step 6: Final answer
   x = 18,149.00