Finding the Fourth Proportional to 9,085.76, 13,628.76 and 3,242.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,085.76 : 13,628.76 = 3,242.72 : x
2. Step 2: Convert to fraction form
   9,085.76/13,628.76 = 3,242.72/x
3. Step 3: Cross multiply
   9,085.76x = 13,628.76 × 3,242.72
4. Step 4: Simplify right side
   9,085.76x = 44,194,252.63
5. Step 5: Solve for x
   x = 44,194,252.63/9,085.76
6. Step 6: Final answer
   x = 4,864.12