Finding the Fourth Proportional to 23,640.86, 32,625.33 and 13,031.30

Step by Step Solution

1. Step 1: Write the proportion equation
   23,640.86 : 32,625.33 = 13,031.30 : x
2. Step 2: Convert to fraction form
   23,640.86/32,625.33 = 13,031.30/x
3. Step 3: Cross multiply
   23,640.86x = 32,625.33 × 13,031.30
4. Step 4: Simplify right side
   23,640.86x = 425,150,462.83
5. Step 5: Solve for x
   x = 425,150,462.83/23,640.86
6. Step 6: Final answer
   x = 17,983.71