Finding the Fourth Proportional to 36,892.75, 50,912.01 and 20,978.18

Step by Step Solution

1. Step 1: Write the proportion equation
   36,892.75 : 50,912.01 = 20,978.18 : x
2. Step 2: Convert to fraction form
   36,892.75/50,912.01 = 20,978.18/x
3. Step 3: Cross multiply
   36,892.75x = 50,912.01 × 20,978.18
4. Step 4: Simplify right side
   36,892.75x = 1,068,041,309.94
5. Step 5: Solve for x
   x = 1,068,041,309.94/36,892.75
6. Step 6: Final answer
   x = 28,949.90