Finding the Fourth Proportional to 8,081.48, 12,109.80 and 4,788.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,081.48 : 12,109.80 = 4,788.02 : x
2. Step 2: Convert to fraction form
   8,081.48/12,109.80 = 4,788.02/x
3. Step 3: Cross multiply
   8,081.48x = 12,109.80 × 4,788.02
4. Step 4: Simplify right side
   8,081.48x = 57,981,964.60
5. Step 5: Solve for x
   x = 57,981,964.60/8,081.48
6. Step 6: Final answer
   x = 7,174.67