Finding the Fourth Proportional to 22,803.30, 31,459.61 and 13,241.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,803.30 : 31,459.61 = 13,241.55 : x
2. Step 2: Convert to fraction form
   22,803.30/31,459.61 = 13,241.55/x
3. Step 3: Cross multiply
   22,803.30x = 31,459.61 × 13,241.55
4. Step 4: Simplify right side
   22,803.30x = 416,574,031.90
5. Step 5: Solve for x
   x = 416,574,031.90/22,803.30
6. Step 6: Final answer
   x = 18,268.15