Finding the Fourth Proportional to 65,608.10, 90,582.76 and 50,474.06

Step by Step Solution

1. Step 1: Write the proportion equation
   65,608.10 : 90,582.76 = 50,474.06 : x
2. Step 2: Convert to fraction form
   65,608.10/90,582.76 = 50,474.06/x
3. Step 3: Cross multiply
   65,608.10x = 90,582.76 × 50,474.06
4. Step 4: Simplify right side
   65,608.10x = 4,572,079,663.21
5. Step 5: Solve for x
   x = 4,572,079,663.21/65,608.10
6. Step 6: Final answer
   x = 69,687.73