Finding the Fourth Proportional to 11,499.96, 17,245.39 and 4,479.02

Step by Step Solution

1. Step 1: Write the proportion equation
   11,499.96 : 17,245.39 = 4,479.02 : x
2. Step 2: Convert to fraction form
   11,499.96/17,245.39 = 4,479.02/x
3. Step 3: Cross multiply
   11,499.96x = 17,245.39 × 4,479.02
4. Step 4: Simplify right side
   11,499.96x = 77,242,446.72
5. Step 5: Solve for x
   x = 77,242,446.72/11,499.96
6. Step 6: Final answer
   x = 6,716.76