Finding the Fourth Proportional to 35,477.27, 48,965.72 and 20,380.28

Step by Step Solution

1. Step 1: Write the proportion equation
   35,477.27 : 48,965.72 = 20,380.28 : x
2. Step 2: Convert to fraction form
   35,477.27/48,965.72 = 20,380.28/x
3. Step 3: Cross multiply
   35,477.27x = 48,965.72 × 20,380.28
4. Step 4: Simplify right side
   35,477.27x = 997,935,104.51
5. Step 5: Solve for x
   x = 997,935,104.51/35,477.27
6. Step 6: Final answer
   x = 28,128.86