Finding the Fourth Proportional to 31,079.52, 46,609.56 and 13,531.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,079.52 : 46,609.56 = 13,531.68 : x
2. Step 2: Convert to fraction form
   31,079.52/46,609.56 = 13,531.68/x
3. Step 3: Cross multiply
   31,079.52x = 46,609.56 × 13,531.68
4. Step 4: Simplify right side
   31,079.52x = 630,705,650.86
5. Step 5: Solve for x
   x = 630,705,650.86/31,079.52
6. Step 6: Final answer
   x = 20,293.29