Finding the Fourth Proportional to 50,847.12, 76,105.08 and 45,997.20

Step by Step Solution

1. Step 1: Write the proportion equation
   50,847.12 : 76,105.08 = 45,997.20 : x
2. Step 2: Convert to fraction form
   50,847.12/76,105.08 = 45,997.20/x
3. Step 3: Cross multiply
   50,847.12x = 76,105.08 × 45,997.20
4. Step 4: Simplify right side
   50,847.12x = 3,500,620,585.78
5. Step 5: Solve for x
   x = 3,500,620,585.78/50,847.12
6. Step 6: Final answer
   x = 68,846.00