Finding the Fourth Proportional to 35,826.42, 49,436.50 and 20,716.78

Step by Step Solution

1. Step 1: Write the proportion equation
   35,826.42 : 49,436.50 = 20,716.78 : x
2. Step 2: Convert to fraction form
   35,826.42/49,436.50 = 20,716.78/x
3. Step 3: Cross multiply
   35,826.42x = 49,436.50 × 20,716.78
4. Step 4: Simplify right side
   35,826.42x = 1,024,165,094.47
5. Step 5: Solve for x
   x = 1,024,165,094.47/35,826.42
6. Step 6: Final answer
   x = 28,586.87