Finding the Fourth Proportional to 11,974.56, 17,871.31 and 11,663.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,974.56 : 17,871.31 = 11,663.52 : x
2. Step 2: Convert to fraction form
   11,974.56/17,871.31 = 11,663.52/x
3. Step 3: Cross multiply
   11,974.56x = 17,871.31 × 11,663.52
4. Step 4: Simplify right side
   11,974.56x = 208,442,381.61
5. Step 5: Solve for x
   x = 208,442,381.61/11,974.56
6. Step 6: Final answer
   x = 17,407.10