Finding the Fourth Proportional to 35,238.64, 48,621.72 and 20,326

Step by Step Solution

1. Step 1: Write the proportion equation
   35,238.64 : 48,621.72 = 20,326 : x
2. Step 2: Convert to fraction form
   35,238.64/48,621.72 = 20,326/x
3. Step 3: Cross multiply
   35,238.64x = 48,621.72 × 20,326
4. Step 4: Simplify right side
   35,238.64x = 988,285,080.72
5. Step 5: Solve for x
   x = 988,285,080.72/35,238.64
6. Step 6: Final answer
   x = 28,045.49