Finding the Fourth Proportional to 9,085.34, 13,630.63 and 2,847.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,085.34 : 13,630.63 = 2,847.15 : x
2. Step 2: Convert to fraction form
   9,085.34/13,630.63 = 2,847.15/x
3. Step 3: Cross multiply
   9,085.34x = 13,630.63 × 2,847.15
4. Step 4: Simplify right side
   9,085.34x = 38,808,446.43
5. Step 5: Solve for x
   x = 38,808,446.43/9,085.34
6. Step 6: Final answer
   x = 4,271.55