Finding the Fourth Proportional to 20,742.96, 31,105.28 and 5,948.52

Step by Step Solution

1. Step 1: Write the proportion equation
   20,742.96 : 31,105.28 = 5,948.52 : x
2. Step 2: Convert to fraction form
   20,742.96/31,105.28 = 5,948.52/x
3. Step 3: Cross multiply
   20,742.96x = 31,105.28 × 5,948.52
4. Step 4: Simplify right side
   20,742.96x = 185,030,380.19
5. Step 5: Solve for x
   x = 185,030,380.19/20,742.96
6. Step 6: Final answer
   x = 8,920.15