Finding the Fourth Proportional to 11,067.30, 15,256.83 and 7,918.02

Step by Step Solution

1. Step 1: Write the proportion equation
   11,067.30 : 15,256.83 = 7,918.02 : x
2. Step 2: Convert to fraction form
   11,067.30/15,256.83 = 7,918.02/x
3. Step 3: Cross multiply
   11,067.30x = 15,256.83 × 7,918.02
4. Step 4: Simplify right side
   11,067.30x = 120,803,885.08
5. Step 5: Solve for x
   x = 120,803,885.08/11,067.30
6. Step 6: Final answer
   x = 10,915.39