Finding the Fourth Proportional to 51,211.50, 70,691.31 and 34,454.22

Step by Step Solution

1. Step 1: Write the proportion equation
   51,211.50 : 70,691.31 = 34,454.22 : x
2. Step 2: Convert to fraction form
   51,211.50/70,691.31 = 34,454.22/x
3. Step 3: Cross multiply
   51,211.50x = 70,691.31 × 34,454.22
4. Step 4: Simplify right side
   51,211.50x = 2,435,613,946.83
5. Step 5: Solve for x
   x = 2,435,613,946.83/51,211.50
6. Step 6: Final answer
   x = 47,559.90