Finding the Fourth Proportional to 8,085.12, 12,126.72 and 2,538.24

Step by Step Solution

1. Step 1: Write the proportion equation
   8,085.12 : 12,126.72 = 2,538.24 : x
2. Step 2: Convert to fraction form
   8,085.12/12,126.72 = 2,538.24/x
3. Step 3: Cross multiply
   8,085.12x = 12,126.72 × 2,538.24
4. Step 4: Simplify right side
   8,085.12x = 30,780,525.77
5. Step 5: Solve for x
   x = 30,780,525.77/8,085.12
6. Step 6: Final answer
   x = 3,807.06