Finding the Fourth Proportional to 23,361.43, 32,239.65 and 13,290.79

Step by Step Solution

1. Step 1: Write the proportion equation
   23,361.43 : 32,239.65 = 13,290.79 : x
2. Step 2: Convert to fraction form
   23,361.43/32,239.65 = 13,290.79/x
3. Step 3: Cross multiply
   23,361.43x = 32,239.65 × 13,290.79
4. Step 4: Simplify right side
   23,361.43x = 428,490,417.82
5. Step 5: Solve for x
   x = 428,490,417.82/23,361.43
6. Step 6: Final answer
   x = 18,341.79