Finding the Fourth Proportional to 11,496.21, 15,858.50 and 7,521.27

Step by Step Solution

1. Step 1: Write the proportion equation
   11,496.21 : 15,858.50 = 7,521.27 : x
2. Step 2: Convert to fraction form
   11,496.21/15,858.50 = 7,521.27/x
3. Step 3: Cross multiply
   11,496.21x = 15,858.50 × 7,521.27
4. Step 4: Simplify right side
   11,496.21x = 119,276,022.69
5. Step 5: Solve for x
   x = 119,276,022.69/11,496.21
6. Step 6: Final answer
   x = 10,375.25