Finding the Fourth Proportional to 52,106.78, 71,909.72 and 31,959.05

Step by Step Solution

1. Step 1: Write the proportion equation
   52,106.78 : 71,909.72 = 31,959.05 : x
2. Step 2: Convert to fraction form
   52,106.78/71,909.72 = 31,959.05/x
3. Step 3: Cross multiply
   52,106.78x = 71,909.72 × 31,959.05
4. Step 4: Simplify right side
   52,106.78x = 2,298,165,817.62
5. Step 5: Solve for x
   x = 2,298,165,817.62/52,106.78
6. Step 6: Final answer
   x = 44,104.93