Finding the Fourth Proportional to 11,412.10, 15,743.85 and 7,160.27

Step by Step Solution

1. Step 1: Write the proportion equation
   11,412.10 : 15,743.85 = 7,160.27 : x
2. Step 2: Convert to fraction form
   11,412.10/15,743.85 = 7,160.27/x
3. Step 3: Cross multiply
   11,412.10x = 15,743.85 × 7,160.27
4. Step 4: Simplify right side
   11,412.10x = 112,730,111.27
5. Step 5: Solve for x
   x = 112,730,111.27/11,412.10
6. Step 6: Final answer
   x = 9,878.12