Finding the Fourth Proportional to 11,447.06, 17,167.82 and 3,127.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,447.06 : 17,167.82 = 3,127.12 : x
2. Step 2: Convert to fraction form
   11,447.06/17,167.82 = 3,127.12/x
3. Step 3: Cross multiply
   11,447.06x = 17,167.82 × 3,127.12
4. Step 4: Simplify right side
   11,447.06x = 53,685,731.80
5. Step 5: Solve for x
   x = 53,685,731.80/11,447.06
6. Step 6: Final answer
   x = 4,689.92