Finding the Fourth Proportional to 11,670.96, 17,509.56 and 5,097.68

Step by Step Solution

1. Step 1: Write the proportion equation
   11,670.96 : 17,509.56 = 5,097.68 : x
2. Step 2: Convert to fraction form
   11,670.96/17,509.56 = 5,097.68/x
3. Step 3: Cross multiply
   11,670.96x = 17,509.56 × 5,097.68
4. Step 4: Simplify right side
   11,670.96x = 89,258,133.82
5. Step 5: Solve for x
   x = 89,258,133.82/11,670.96
6. Step 6: Final answer
   x = 7,647.88