Finding the Fourth Proportional to 37,728.48, 52,066.17 and 20,733.78

Step by Step Solution

1. Step 1: Write the proportion equation
   37,728.48 : 52,066.17 = 20,733.78 : x
2. Step 2: Convert to fraction form
   37,728.48/52,066.17 = 20,733.78/x
3. Step 3: Cross multiply
   37,728.48x = 52,066.17 × 20,733.78
4. Step 4: Simplify right side
   37,728.48x = 1,079,528,514.22
5. Step 5: Solve for x
   x = 1,079,528,514.22/37,728.48
6. Step 6: Final answer
   x = 28,613.09