Finding the Fourth Proportional to 32,431.86, 48,647.75 and 13,707

Step by Step Solution

1. Step 1: Write the proportion equation
   32,431.86 : 48,647.75 = 13,707 : x
2. Step 2: Convert to fraction form
   32,431.86/48,647.75 = 13,707/x
3. Step 3: Cross multiply
   32,431.86x = 48,647.75 × 13,707
4. Step 4: Simplify right side
   32,431.86x = 666,814,640.72
5. Step 5: Solve for x
   x = 666,814,640.72/32,431.86
6. Step 6: Final answer
   x = 20,560.48