Finding the Fourth Proportional to 11,491.49, 17,223.30 and 5,242.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,491.49 : 17,223.30 = 5,242.94 : x
2. Step 2: Convert to fraction form
   11,491.49/17,223.30 = 5,242.94/x
3. Step 3: Cross multiply
   11,491.49x = 17,223.30 × 5,242.94
4. Step 4: Simplify right side
   11,491.49x = 90,300,728.50
5. Step 5: Solve for x
   x = 90,300,728.50/11,491.49
6. Step 6: Final answer
   x = 7,858.05