Finding the Fourth Proportional to 9,011.09, 13,518.45 and 3,168.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,011.09 : 13,518.45 = 3,168.15 : x
2. Step 2: Convert to fraction form
   9,011.09/13,518.45 = 3,168.15/x
3. Step 3: Cross multiply
   9,011.09x = 13,518.45 × 3,168.15
4. Step 4: Simplify right side
   9,011.09x = 42,828,477.37
5. Step 5: Solve for x
   x = 42,828,477.37/9,011.09
6. Step 6: Final answer
   x = 4,752.87