Finding the Fourth Proportional to 105,520.80, 158,234.88 and 31,631.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105,520.80 : 158,234.88 = 31,631.52 : x
2. Step 2: Convert to fraction form
   105,520.80/158,234.88 = 31,631.52/x
3. Step 3: Cross multiply
   105,520.80x = 158,234.88 × 31,631.52
4. Step 4: Simplify right side
   105,520.80x = 5,005,209,771.42
5. Step 5: Solve for x
   x = 5,005,209,771.42/105,520.80
6. Step 6: Final answer
   x = 47,433.39