Finding the Fourth Proportional to 11,620.72, 17,426.69 and 4,223.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,620.72 : 17,426.69 = 4,223.34 : x
2. Step 2: Convert to fraction form
   11,620.72/17,426.69 = 4,223.34/x
3. Step 3: Cross multiply
   11,620.72x = 17,426.69 × 4,223.34
4. Step 4: Simplify right side
   11,620.72x = 73,598,836.94
5. Step 5: Solve for x
   x = 73,598,836.94/11,620.72
6. Step 6: Final answer
   x = 6,333.41