Finding the Fourth Proportional to 43,404, 65,105.94 and 28,505.18

Step by Step Solution

1. Step 1: Write the proportion equation
   43,404 : 65,105.94 = 28,505.18 : x
2. Step 2: Convert to fraction form
   43,404/65,105.94 = 28,505.18/x
3. Step 3: Cross multiply
   43,404x = 65,105.94 × 28,505.18
4. Step 4: Simplify right side
   43,404x = 1,855,856,213.24
5. Step 5: Solve for x
   x = 1,855,856,213.24/43,404
6. Step 6: Final answer
   x = 42,757.72