Finding the Fourth Proportional to 87,826.50, 131,760.72 and 28,662.28

Step by Step Solution

1. Step 1: Write the proportion equation
   87,826.50 : 131,760.72 = 28,662.28 : x
2. Step 2: Convert to fraction form
   87,826.50/131,760.72 = 28,662.28/x
3. Step 3: Cross multiply
   87,826.50x = 131,760.72 × 28,662.28
4. Step 4: Simplify right side
   87,826.50x = 3,776,562,649.64
5. Step 5: Solve for x
   x = 3,776,562,649.64/87,826.50
6. Step 6: Final answer
   x = 43,000.26