Finding the Fourth Proportional to 35,638.10, 49,185.78 and 20,527.82

Step by Step Solution

1. Step 1: Write the proportion equation
   35,638.10 : 49,185.78 = 20,527.82 : x
2. Step 2: Convert to fraction form
   35,638.10/49,185.78 = 20,527.82/x
3. Step 3: Cross multiply
   35,638.10x = 49,185.78 × 20,527.82
4. Step 4: Simplify right side
   35,638.10x = 1,009,676,838.40
5. Step 5: Solve for x
   x = 1,009,676,838.40/35,638.10
6. Step 6: Final answer
   x = 28,331.39