Finding the Fourth Proportional to 65,517.48, 90,414.12 and 37,223.20

Step by Step Solution

1. Step 1: Write the proportion equation
   65,517.48 : 90,414.12 = 37,223.20 : x
2. Step 2: Convert to fraction form
   65,517.48/90,414.12 = 37,223.20/x
3. Step 3: Cross multiply
   65,517.48x = 90,414.12 × 37,223.20
4. Step 4: Simplify right side
   65,517.48x = 3,365,502,871.58
5. Step 5: Solve for x
   x = 3,365,502,871.58/65,517.48
6. Step 6: Final answer
   x = 51,368.01