Finding the Fourth Proportional to 23,345.74, 32,216.43 and 13,275.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,345.74 : 32,216.43 = 13,275.28 : x
2. Step 2: Convert to fraction form
   23,345.74/32,216.43 = 13,275.28/x
3. Step 3: Cross multiply
   23,345.74x = 32,216.43 × 13,275.28
4. Step 4: Simplify right side
   23,345.74x = 427,682,128.85
5. Step 5: Solve for x
   x = 427,682,128.85/23,345.74
6. Step 6: Final answer
   x = 18,319.49