Finding the Fourth Proportional to 37,716.28, 52,048.25 and 20,720.15

Step by Step Solution

1. Step 1: Write the proportion equation
   37,716.28 : 52,048.25 = 20,720.15 : x
2. Step 2: Convert to fraction form
   37,716.28/52,048.25 = 20,720.15/x
3. Step 3: Cross multiply
   37,716.28x = 52,048.25 × 20,720.15
4. Step 4: Simplify right side
   37,716.28x = 1,078,447,622.55
5. Step 5: Solve for x
   x = 1,078,447,622.55/37,716.28
6. Step 6: Final answer
   x = 28,593.69