Finding the Fourth Proportional to 11,809.28, 16,289.88 and 7,094.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,809.28 : 16,289.88 = 7,094.72 : x
2. Step 2: Convert to fraction form
   11,809.28/16,289.88 = 7,094.72/x
3. Step 3: Cross multiply
   11,809.28x = 16,289.88 × 7,094.72
4. Step 4: Simplify right side
   11,809.28x = 115,572,137.43
5. Step 5: Solve for x
   x = 115,572,137.43/11,809.28
6. Step 6: Final answer
   x = 9,786.55