Finding the Fourth Proportional to 11,719.41, 17,577.15 and 5,143.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,719.41 : 17,577.15 = 5,143.83 : x
2. Step 2: Convert to fraction form
   11,719.41/17,577.15 = 5,143.83/x
3. Step 3: Cross multiply
   11,719.41x = 17,577.15 × 5,143.83
4. Step 4: Simplify right side
   11,719.41x = 90,413,871.48
5. Step 5: Solve for x
   x = 90,413,871.48/11,719.41
6. Step 6: Final answer
   x = 7,714.88