Finding the Fourth Proportional to 11,357.83, 15,672.72 and 8,375.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,357.83 : 15,672.72 = 8,375.28 : x
2. Step 2: Convert to fraction form
   11,357.83/15,672.72 = 8,375.28/x
3. Step 3: Cross multiply
   11,357.83x = 15,672.72 × 8,375.28
4. Step 4: Simplify right side
   11,357.83x = 131,263,418.36
5. Step 5: Solve for x
   x = 131,263,418.36/11,357.83
6. Step 6: Final answer
   x = 11,557.09