Finding the Fourth Proportional to 11,179.74, 15,434.81 and 7,406.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,179.74 : 15,434.81 = 7,406.15 : x
2. Step 2: Convert to fraction form
   11,179.74/15,434.81 = 7,406.15/x
3. Step 3: Cross multiply
   11,179.74x = 15,434.81 × 7,406.15
4. Step 4: Simplify right side
   11,179.74x = 114,312,403.88
5. Step 5: Solve for x
   x = 114,312,403.88/11,179.74
6. Step 6: Final answer
   x = 10,224.96