Finding the Fourth Proportional to 11,638.87, 17,453.18 and 3,317.00

Step by Step Solution

1. Step 1: Write the proportion equation
   11,638.87 : 17,453.18 = 3,317.00 : x
2. Step 2: Convert to fraction form
   11,638.87/17,453.18 = 3,317.00/x
3. Step 3: Cross multiply
   11,638.87x = 17,453.18 × 3,317.00
4. Step 4: Simplify right side
   11,638.87x = 57,892,119.09
5. Step 5: Solve for x
   x = 57,892,119.09/11,638.87
6. Step 6: Final answer
   x = 4,974.03