Finding the Fourth Proportional to 11,117.28, 15,302.88 and 10,067.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,117.28 : 15,302.88 = 10,067.52 : x
2. Step 2: Convert to fraction form
   11,117.28/15,302.88 = 10,067.52/x
3. Step 3: Cross multiply
   11,117.28x = 15,302.88 × 10,067.52
4. Step 4: Simplify right side
   11,117.28x = 154,062,050.46
5. Step 5: Solve for x
   x = 154,062,050.46/11,117.28
6. Step 6: Final answer
   x = 13,857.89