Finding the Fourth Proportional to 37,717.47, 52,047.59 and 20,718.39

Step by Step Solution

1. Step 1: Write the proportion equation
   37,717.47 : 52,047.59 = 20,718.39 : x
2. Step 2: Convert to fraction form
   37,717.47/52,047.59 = 20,718.39/x
3. Step 3: Cross multiply
   37,717.47x = 52,047.59 × 20,718.39
4. Step 4: Simplify right side
   37,717.47x = 1,078,342,164.59
5. Step 5: Solve for x
   x = 1,078,342,164.59/37,717.47
6. Step 6: Final answer
   x = 28,589.99