Finding the Fourth Proportional to 11,621.64, 17,433.61 and 3,722.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,621.64 : 17,433.61 = 3,722.18 : x
2. Step 2: Convert to fraction form
   11,621.64/17,433.61 = 3,722.18/x
3. Step 3: Cross multiply
   11,621.64x = 17,433.61 × 3,722.18
4. Step 4: Simplify right side
   11,621.64x = 64,890,947.30
5. Step 5: Solve for x
   x = 64,890,947.30/11,621.64
6. Step 6: Final answer
   x = 5,583.63