Finding the Fourth Proportional to 11,748.94, 17,621.68 and 3,426.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,748.94 : 17,621.68 = 3,426.72 : x
2. Step 2: Convert to fraction form
   11,748.94/17,621.68 = 3,426.72/x
3. Step 3: Cross multiply
   11,748.94x = 17,621.68 × 3,426.72
4. Step 4: Simplify right side
   11,748.94x = 60,384,563.29
5. Step 5: Solve for x
   x = 60,384,563.29/11,748.94
6. Step 6: Final answer
   x = 5,139.58