Finding the Fourth Proportional to 23,900.57, 32,982.83 and 13,290.22

Step by Step Solution

1. Step 1: Write the proportion equation
   23,900.57 : 32,982.83 = 13,290.22 : x
2. Step 2: Convert to fraction form
   23,900.57/32,982.83 = 13,290.22/x
3. Step 3: Cross multiply
   23,900.57x = 32,982.83 × 13,290.22
4. Step 4: Simplify right side
   23,900.57x = 438,349,066.92
5. Step 5: Solve for x
   x = 438,349,066.92/23,900.57
6. Step 6: Final answer
   x = 18,340.53