Finding the Fourth Proportional to 9,090.43, 13,613.78 and 5,182.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,090.43 : 13,613.78 = 5,182.99 : x
2. Step 2: Convert to fraction form
   9,090.43/13,613.78 = 5,182.99/x
3. Step 3: Cross multiply
   9,090.43x = 13,613.78 × 5,182.99
4. Step 4: Simplify right side
   9,090.43x = 70,560,059.69
5. Step 5: Solve for x
   x = 70,560,059.69/9,090.43
6. Step 6: Final answer
   x = 7,762.02