Finding the Fourth Proportional to 11,410.74, 17,118.84 and 3,619.55

Step by Step Solution

1. Step 1: Write the proportion equation
   11,410.74 : 17,118.84 = 3,619.55 : x
2. Step 2: Convert to fraction form
   11,410.74/17,118.84 = 3,619.55/x
3. Step 3: Cross multiply
   11,410.74x = 17,118.84 × 3,619.55
4. Step 4: Simplify right side
   11,410.74x = 61,962,411.73
5. Step 5: Solve for x
   x = 61,962,411.73/11,410.74
6. Step 6: Final answer
   x = 5,430.18