Finding the Fourth Proportional to 36,801.17, 50,782.71 and 20,885.61

Step by Step Solution

1. Step 1: Write the proportion equation
   36,801.17 : 50,782.71 = 20,885.61 : x
2. Step 2: Convert to fraction form
   36,801.17/50,782.71 = 20,885.61/x
3. Step 3: Cross multiply
   36,801.17x = 50,782.71 × 20,885.61
4. Step 4: Simplify right side
   36,801.17x = 1,060,628,144.56
5. Step 5: Solve for x
   x = 1,060,628,144.56/36,801.17
6. Step 6: Final answer
   x = 28,820.50