Finding the Fourth Proportional to 9,078.96, 13,613.40 and 3,528.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,078.96 : 13,613.40 = 3,528.84 : x
2. Step 2: Convert to fraction form
   9,078.96/13,613.40 = 3,528.84/x
3. Step 3: Cross multiply
   9,078.96x = 13,613.40 × 3,528.84
4. Step 4: Simplify right side
   9,078.96x = 48,039,510.46
5. Step 5: Solve for x
   x = 48,039,510.46/9,078.96
6. Step 6: Final answer
   x = 5,291.30