Finding the Fourth Proportional to 35,978.87, 49,651.13 and 20,064.35

Step by Step Solution

1. Step 1: Write the proportion equation
   35,978.87 : 49,651.13 = 20,064.35 : x
2. Step 2: Convert to fraction form
   35,978.87/49,651.13 = 20,064.35/x
3. Step 3: Cross multiply
   35,978.87x = 49,651.13 × 20,064.35
4. Step 4: Simplify right side
   35,978.87x = 996,217,650.22
5. Step 5: Solve for x
   x = 996,217,650.22/35,978.87
6. Step 6: Final answer
   x = 27,688.96