Finding the Fourth Proportional to 23,478.52, 32,400.34 and 12,868.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,478.52 : 32,400.34 = 12,868.56 : x
2. Step 2: Convert to fraction form
   23,478.52/32,400.34 = 12,868.56/x
3. Step 3: Cross multiply
   23,478.52x = 32,400.34 × 12,868.56
4. Step 4: Simplify right side
   23,478.52x = 416,945,719.31
5. Step 5: Solve for x
   x = 416,945,719.31/23,478.52
6. Step 6: Final answer
   x = 17,758.60