Finding the Fourth Proportional to 8,109.96, 12,164.78 and 4,948.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,109.96 : 12,164.78 = 4,948.32 : x
2. Step 2: Convert to fraction form
   8,109.96/12,164.78 = 4,948.32/x
3. Step 3: Cross multiply
   8,109.96x = 12,164.78 × 4,948.32
4. Step 4: Simplify right side
   8,109.96x = 60,195,282.16
5. Step 5: Solve for x
   x = 60,195,282.16/8,109.96
6. Step 6: Final answer
   x = 7,422.39