Finding the Fourth Proportional to 22,861.30, 31,559.38 and 17,198.21

Step by Step Solution

1. Step 1: Write the proportion equation
   22,861.30 : 31,559.38 = 17,198.21 : x
2. Step 2: Convert to fraction form
   22,861.30/31,559.38 = 17,198.21/x
3. Step 3: Cross multiply
   22,861.30x = 31,559.38 × 17,198.21
4. Step 4: Simplify right side
   22,861.30x = 542,764,799.83
5. Step 5: Solve for x
   x = 542,764,799.83/22,861.30
6. Step 6: Final answer
   x = 23,741.64