Finding the Fourth Proportional to 11,401.02, 17,101.80 and 3,609.90

Step by Step Solution

1. Step 1: Write the proportion equation
   11,401.02 : 17,101.80 = 3,609.90 : x
2. Step 2: Convert to fraction form
   11,401.02/17,101.80 = 3,609.90/x
3. Step 3: Cross multiply
   11,401.02x = 17,101.80 × 3,609.90
4. Step 4: Simplify right side
   11,401.02x = 61,735,787.82
5. Step 5: Solve for x
   x = 61,735,787.82/11,401.02
6. Step 6: Final answer
   x = 5,414.94