Finding the Fourth Proportional to 11,498.49, 17,223.48 and 5,263.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,498.49 : 17,223.48 = 5,263.76 : x
2. Step 2: Convert to fraction form
   11,498.49/17,223.48 = 5,263.76/x
3. Step 3: Cross multiply
   11,498.49x = 17,223.48 × 5,263.76
4. Step 4: Simplify right side
   11,498.49x = 90,660,178.97
5. Step 5: Solve for x
   x = 90,660,178.97/11,498.49
6. Step 6: Final answer
   x = 7,884.53