Finding the Fourth Proportional to 19,812.72, 29,723.68 and 5,774.24

Step by Step Solution

1. Step 1: Write the proportion equation
   19,812.72 : 29,723.68 = 5,774.24 : x
2. Step 2: Convert to fraction form
   19,812.72/29,723.68 = 5,774.24/x
3. Step 3: Cross multiply
   19,812.72x = 29,723.68 × 5,774.24
4. Step 4: Simplify right side
   19,812.72x = 171,631,662.00
5. Step 5: Solve for x
   x = 171,631,662.00/19,812.72
6. Step 6: Final answer
   x = 8,662.70