Finding the Fourth Proportional to 11,819.64, 17,723.18 and 3,498.51

Step by Step Solution

1. Step 1: Write the proportion equation
   11,819.64 : 17,723.18 = 3,498.51 : x
2. Step 2: Convert to fraction form
   11,819.64/17,723.18 = 3,498.51/x
3. Step 3: Cross multiply
   11,819.64x = 17,723.18 × 3,498.51
4. Step 4: Simplify right side
   11,819.64x = 62,004,722.46
5. Step 5: Solve for x
   x = 62,004,722.46/11,819.64
6. Step 6: Final answer
   x = 5,245.91