Finding the Fourth Proportional to 51,479.85, 71,063.83 and 31,343.96

Step by Step Solution

1. Step 1: Write the proportion equation
   51,479.85 : 71,063.83 = 31,343.96 : x
2. Step 2: Convert to fraction form
   51,479.85/71,063.83 = 31,343.96/x
3. Step 3: Cross multiply
   51,479.85x = 71,063.83 × 31,343.96
4. Step 4: Simplify right side
   51,479.85x = 2,227,422,061.81
5. Step 5: Solve for x
   x = 2,227,422,061.81/51,479.85
6. Step 6: Final answer
   x = 43,267.84