Finding the Fourth Proportional to 11,145.21, 15,375.87 and 7,602.27

Step by Step Solution

1. Step 1: Write the proportion equation
   11,145.21 : 15,375.87 = 7,602.27 : x
2. Step 2: Convert to fraction form
   11,145.21/15,375.87 = 7,602.27/x
3. Step 3: Cross multiply
   11,145.21x = 15,375.87 × 7,602.27
4. Step 4: Simplify right side
   11,145.21x = 116,891,515.22
5. Step 5: Solve for x
   x = 116,891,515.22/11,145.21
6. Step 6: Final answer
   x = 10,488.05