Finding the Fourth Proportional to 11,173.34, 15,392.62 and 7,809.92

Step by Step Solution

1. Step 1: Write the proportion equation
   11,173.34 : 15,392.62 = 7,809.92 : x
2. Step 2: Convert to fraction form
   11,173.34/15,392.62 = 7,809.92/x
3. Step 3: Cross multiply
   11,173.34x = 15,392.62 × 7,809.92
4. Step 4: Simplify right side
   11,173.34x = 120,215,014.78
5. Step 5: Solve for x
   x = 120,215,014.78/11,173.34
6. Step 6: Final answer
   x = 10,759.10