Finding the Fourth Proportional to 11,106.56, 16,662.48 and 3,315.17

Step by Step Solution

1. Step 1: Write the proportion equation
   11,106.56 : 16,662.48 = 3,315.17 : x
2. Step 2: Convert to fraction form
   11,106.56/16,662.48 = 3,315.17/x
3. Step 3: Cross multiply
   11,106.56x = 16,662.48 × 3,315.17
4. Step 4: Simplify right side
   11,106.56x = 55,238,937.25
5. Step 5: Solve for x
   x = 55,238,937.25/11,106.56
6. Step 6: Final answer
   x = 4,973.54