Finding the Fourth Proportional to 8,109.18, 11,190.74 and 4,752.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,109.18 : 11,190.74 = 4,752.09 : x
2. Step 2: Convert to fraction form
   8,109.18/11,190.74 = 4,752.09/x
3. Step 3: Cross multiply
   8,109.18x = 11,190.74 × 4,752.09
4. Step 4: Simplify right side
   8,109.18x = 53,179,379.89
5. Step 5: Solve for x
   x = 53,179,379.89/8,109.18
6. Step 6: Final answer
   x = 6,557.92