Finding the Fourth Proportional to 11,406.76, 17,119.20 and 5,167.23

Step by Step Solution

1. Step 1: Write the proportion equation
   11,406.76 : 17,119.20 = 5,167.23 : x
2. Step 2: Convert to fraction form
   11,406.76/17,119.20 = 5,167.23/x
3. Step 3: Cross multiply
   11,406.76x = 17,119.20 × 5,167.23
4. Step 4: Simplify right side
   11,406.76x = 88,458,843.82
5. Step 5: Solve for x
   x = 88,458,843.82/11,406.76
6. Step 6: Final answer
   x = 7,754.95