Finding the Fourth Proportional to 11,381.24, 17,077.27 and 5,143.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,381.24 : 17,077.27 = 5,143.16 : x
2. Step 2: Convert to fraction form
   11,381.24/17,077.27 = 5,143.16/x
3. Step 3: Cross multiply
   11,381.24x = 17,077.27 × 5,143.16
4. Step 4: Simplify right side
   11,381.24x = 87,831,046.59
5. Step 5: Solve for x
   x = 87,831,046.59/11,381.24
6. Step 6: Final answer
   x = 7,717.18