Finding the Fourth Proportional to 11,067.30, 16,570.17 and 7,159.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,067.30 : 16,570.17 = 7,159.86 : x
2. Step 2: Convert to fraction form
   11,067.30/16,570.17 = 7,159.86/x
3. Step 3: Cross multiply
   11,067.30x = 16,570.17 × 7,159.86
4. Step 4: Simplify right side
   11,067.30x = 118,640,097.38
5. Step 5: Solve for x
   x = 118,640,097.38/11,067.30
6. Step 6: Final answer
   x = 10,719.88