Finding the Fourth Proportional to 23,215.34, 32,037.42 and 13,143.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,215.34 : 32,037.42 = 13,143.56 : x
2. Step 2: Convert to fraction form
   23,215.34/32,037.42 = 13,143.56/x
3. Step 3: Cross multiply
   23,215.34x = 32,037.42 × 13,143.56
4. Step 4: Simplify right side
   23,215.34x = 421,085,591.83
5. Step 5: Solve for x
   x = 421,085,591.83/23,215.34
6. Step 6: Final answer
   x = 18,138.25