Finding the Fourth Proportional to 51,899.71, 71,626.88 and 31,769.89

Step by Step Solution

1. Step 1: Write the proportion equation
   51,899.71 : 71,626.88 = 31,769.89 : x
2. Step 2: Convert to fraction form
   51,899.71/71,626.88 = 31,769.89/x
3. Step 3: Cross multiply
   51,899.71x = 71,626.88 × 31,769.89
4. Step 4: Simplify right side
   51,899.71x = 2,275,578,098.64
5. Step 5: Solve for x
   x = 2,275,578,098.64/51,899.71
6. Step 6: Final answer
   x = 43,845.68