Finding the Fourth Proportional to 23,343.89, 32,215.71 and 13,138.11

Step by Step Solution

1. Step 1: Write the proportion equation
   23,343.89 : 32,215.71 = 13,138.11 : x
2. Step 2: Convert to fraction form
   23,343.89/32,215.71 = 13,138.11/x
3. Step 3: Cross multiply
   23,343.89x = 32,215.71 × 13,138.11
4. Step 4: Simplify right side
   23,343.89x = 423,253,541.71
5. Step 5: Solve for x
   x = 423,253,541.71/23,343.89
6. Step 6: Final answer
   x = 18,131.23