Finding the Fourth Proportional to 11,288.42, 15,570.27 and 7,745.48

Step by Step Solution

1. Step 1: Write the proportion equation
   11,288.42 : 15,570.27 = 7,745.48 : x
2. Step 2: Convert to fraction form
   11,288.42/15,570.27 = 7,745.48/x
3. Step 3: Cross multiply
   11,288.42x = 15,570.27 × 7,745.48
4. Step 4: Simplify right side
   11,288.42x = 120,599,195.42
5. Step 5: Solve for x
   x = 120,599,195.42/11,288.42
6. Step 6: Final answer
   x = 10,683.44