Finding the Fourth Proportional to 19,768.23, 29,653.89 and 5,728.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,768.23 : 29,653.89 = 5,728.50 : x
2. Step 2: Convert to fraction form
   19,768.23/29,653.89 = 5,728.50/x
3. Step 3: Cross multiply
   19,768.23x = 29,653.89 × 5,728.50
4. Step 4: Simplify right side
   19,768.23x = 169,872,308.87
5. Step 5: Solve for x
   x = 169,872,308.87/19,768.23
6. Step 6: Final answer
   x = 8,593.20