Finding the Fourth Proportional to 9,091.72, 13,636.56 and 2,851.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,091.72 : 13,636.56 = 2,851.48 : x
2. Step 2: Convert to fraction form
   9,091.72/13,636.56 = 2,851.48/x
3. Step 3: Cross multiply
   9,091.72x = 13,636.56 × 2,851.48
4. Step 4: Simplify right side
   9,091.72x = 38,884,378.11
5. Step 5: Solve for x
   x = 38,884,378.11/9,091.72
6. Step 6: Final answer
   x = 4,276.90