Finding the Fourth Proportional to 11,618.45, 17,422.35 and 3,719.44

Step by Step Solution

1. Step 1: Write the proportion equation
   11,618.45 : 17,422.35 = 3,719.44 : x
2. Step 2: Convert to fraction form
   11,618.45/17,422.35 = 3,719.44/x
3. Step 3: Cross multiply
   11,618.45x = 17,422.35 × 3,719.44
4. Step 4: Simplify right side
   11,618.45x = 64,801,298.37
5. Step 5: Solve for x
   x = 64,801,298.37/11,618.45
6. Step 6: Final answer
   x = 5,577.45