Finding the Fourth Proportional to 37,724.10, 52,059 and 20,728.53

Step by Step Solution

1. Step 1: Write the proportion equation
   37,724.10 : 52,059 = 20,728.53 : x
2. Step 2: Convert to fraction form
   37,724.10/52,059 = 20,728.53/x
3. Step 3: Cross multiply
   37,724.10x = 52,059 × 20,728.53
4. Step 4: Simplify right side
   37,724.10x = 1,079,106,543.27
5. Step 5: Solve for x
   x = 1,079,106,543.27/37,724.10
6. Step 6: Final answer
   x = 28,605.23