Finding the Fourth Proportional to 11,327.86, 15,636.81 and 7,549.65

Step by Step Solution

1. Step 1: Write the proportion equation
   11,327.86 : 15,636.81 = 7,549.65 : x
2. Step 2: Convert to fraction form
   11,327.86/15,636.81 = 7,549.65/x
3. Step 3: Cross multiply
   11,327.86x = 15,636.81 × 7,549.65
4. Step 4: Simplify right side
   11,327.86x = 118,052,477.56
5. Step 5: Solve for x
   x = 118,052,477.56/11,327.86
6. Step 6: Final answer
   x = 10,421.42