Finding the Fourth Proportional to 11,911.36, 17,860.56 and 4,984.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,911.36 : 17,860.56 = 4,984.24 : x
2. Step 2: Convert to fraction form
   11,911.36/17,860.56 = 4,984.24/x
3. Step 3: Cross multiply
   11,911.36x = 17,860.56 × 4,984.24
4. Step 4: Simplify right side
   11,911.36x = 89,021,317.57
5. Step 5: Solve for x
   x = 89,021,317.57/11,911.36
6. Step 6: Final answer
   x = 7,473.65