Finding the Fourth Proportional to 34,116.28, 51,171.18 and 20,785.72

Step by Step Solution

1. Step 1: Write the proportion equation
   34,116.28 : 51,171.18 = 20,785.72 : x
2. Step 2: Convert to fraction form
   34,116.28/51,171.18 = 20,785.72/x
3. Step 3: Cross multiply
   34,116.28x = 51,171.18 × 20,785.72
4. Step 4: Simplify right side
   34,116.28x = 1,063,629,819.55
5. Step 5: Solve for x
   x = 1,063,629,819.55/34,116.28
6. Step 6: Final answer
   x = 31,176.61