Finding the Fourth Proportional to 23,641.60, 32,625.28 and 13,031

Step by Step Solution

1. Step 1: Write the proportion equation
   23,641.60 : 32,625.28 = 13,031 : x
2. Step 2: Convert to fraction form
   23,641.60/32,625.28 = 13,031/x
3. Step 3: Cross multiply
   23,641.60x = 32,625.28 × 13,031
4. Step 4: Simplify right side
   23,641.60x = 425,140,023.68
5. Step 5: Solve for x
   x = 425,140,023.68/23,641.60
6. Step 6: Final answer
   x = 17,982.71