Finding the Fourth Proportional to 87,451, 131,204.16 and 31,289.86

Step by Step Solution

1. Step 1: Write the proportion equation
   87,451 : 131,204.16 = 31,289.86 : x
2. Step 2: Convert to fraction form
   87,451/131,204.16 = 31,289.86/x
3. Step 3: Cross multiply
   87,451x = 131,204.16 × 31,289.86
4. Step 4: Simplify right side
   87,451x = 4,105,359,797.82
5. Step 5: Solve for x
   x = 4,105,359,797.82/87,451
6. Step 6: Final answer
   x = 46,944.69