Finding the Fourth Proportional to 51,520.18, 71,097.82 and 31,377.05

Step by Step Solution

1. Step 1: Write the proportion equation
   51,520.18 : 71,097.82 = 31,377.05 : x
2. Step 2: Convert to fraction form
   51,520.18/71,097.82 = 31,377.05/x
3. Step 3: Cross multiply
   51,520.18x = 71,097.82 × 31,377.05
4. Step 4: Simplify right side
   51,520.18x = 2,230,839,853.03
5. Step 5: Solve for x
   x = 2,230,839,853.03/51,520.18
6. Step 6: Final answer
   x = 43,300.31