Finding the Fourth Proportional to 8,496.68, 11,723.86 and 5,139.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,496.68 : 11,723.86 = 5,139.02 : x
2. Step 2: Convert to fraction form
   8,496.68/11,723.86 = 5,139.02/x
3. Step 3: Cross multiply
   8,496.68x = 11,723.86 × 5,139.02
4. Step 4: Simplify right side
   8,496.68x = 60,249,151.02
5. Step 5: Solve for x
   x = 60,249,151.02/8,496.68
6. Step 6: Final answer
   x = 7,090.91