Finding the Fourth Proportional to 36,005.99, 49,680.30 and 20,889.89

Step by Step Solution

1. Step 1: Write the proportion equation
   36,005.99 : 49,680.30 = 20,889.89 : x
2. Step 2: Convert to fraction form
   36,005.99/49,680.30 = 20,889.89/x
3. Step 3: Cross multiply
   36,005.99x = 49,680.30 × 20,889.89
4. Step 4: Simplify right side
   36,005.99x = 1,037,816,002.17
5. Step 5: Solve for x
   x = 1,037,816,002.17/36,005.99
6. Step 6: Final answer
   x = 28,823.43