Finding the Fourth Proportional to 11,447.34, 17,016.64 and 11,111.02

Step by Step Solution

1. Step 1: Write the proportion equation
   11,447.34 : 17,016.64 = 11,111.02 : x
2. Step 2: Convert to fraction form
   11,447.34/17,016.64 = 11,111.02/x
3. Step 3: Cross multiply
   11,447.34x = 17,016.64 × 11,111.02
4. Step 4: Simplify right side
   11,447.34x = 189,072,227.37
5. Step 5: Solve for x
   x = 189,072,227.37/11,447.34
6. Step 6: Final answer
   x = 16,516.70