Finding the Fourth Proportional to 23,002.50, 31,741.36 and 13,310.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,002.50 : 31,741.36 = 13,310.28 : x
2. Step 2: Convert to fraction form
   23,002.50/31,741.36 = 13,310.28/x
3. Step 3: Cross multiply
   23,002.50x = 31,741.36 × 13,310.28
4. Step 4: Simplify right side
   23,002.50x = 422,486,499.89
5. Step 5: Solve for x
   x = 422,486,499.89/23,002.50
6. Step 6: Final answer
   x = 18,366.98