Finding the Fourth Proportional to 11,748.93, 17,621.68 and 3,426.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,748.93 : 17,621.68 = 3,426.71 : x
2. Step 2: Convert to fraction form
   11,748.93/17,621.68 = 3,426.71/x
3. Step 3: Cross multiply
   11,748.93x = 17,621.68 × 3,426.71
4. Step 4: Simplify right side
   11,748.93x = 60,384,387.07
5. Step 5: Solve for x
   x = 60,384,387.07/11,748.93
6. Step 6: Final answer
   x = 5,139.56