Finding the Fourth Proportional to 11,162.76, 15,405.39 and 7,379.35

Step by Step Solution

1. Step 1: Write the proportion equation
   11,162.76 : 15,405.39 = 7,379.35 : x
2. Step 2: Convert to fraction form
   11,162.76/15,405.39 = 7,379.35/x
3. Step 3: Cross multiply
   11,162.76x = 15,405.39 × 7,379.35
4. Step 4: Simplify right side
   11,162.76x = 113,681,812.84
5. Step 5: Solve for x
   x = 113,681,812.84/11,162.76
6. Step 6: Final answer
   x = 10,184.02