Finding the Fourth Proportional to 35,730.62, 49,304.69 and 20,628.15

Step by Step Solution

1. Step 1: Write the proportion equation
   35,730.62 : 49,304.69 = 20,628.15 : x
2. Step 2: Convert to fraction form
   35,730.62/49,304.69 = 20,628.15/x
3. Step 3: Cross multiply
   35,730.62x = 49,304.69 × 20,628.15
4. Step 4: Simplify right side
   35,730.62x = 1,017,064,541.02
5. Step 5: Solve for x
   x = 1,017,064,541.02/35,730.62
6. Step 6: Final answer
   x = 28,464.79