Finding the Fourth Proportional to 87,680.37, 131,540.03 and 40,907.73

Step by Step Solution

1. Step 1: Write the proportion equation
   87,680.37 : 131,540.03 = 40,907.73 : x
2. Step 2: Convert to fraction form
   87,680.37/131,540.03 = 40,907.73/x
3. Step 3: Cross multiply
   87,680.37x = 131,540.03 × 40,907.73
4. Step 4: Simplify right side
   87,680.37x = 5,381,003,826.89
5. Step 5: Solve for x
   x = 5,381,003,826.89/87,680.37
6. Step 6: Final answer
   x = 61,370.68