Finding the Fourth Proportional to 11,498.96, 17,243.89 and 4,478.02

Step by Step Solution

1. Step 1: Write the proportion equation
   11,498.96 : 17,243.89 = 4,478.02 : x
2. Step 2: Convert to fraction form
   11,498.96/17,243.89 = 4,478.02/x
3. Step 3: Cross multiply
   11,498.96x = 17,243.89 × 4,478.02
4. Step 4: Simplify right side
   11,498.96x = 77,218,429.99
5. Step 5: Solve for x
   x = 77,218,429.99/11,498.96
6. Step 6: Final answer
   x = 6,715.25