Finding the Fourth Proportional to 9,008.96, 13,499.73 and 5,711.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,008.96 : 13,499.73 = 5,711.99 : x
2. Step 2: Convert to fraction form
   9,008.96/13,499.73 = 5,711.99/x
3. Step 3: Cross multiply
   9,008.96x = 13,499.73 × 5,711.99
4. Step 4: Simplify right side
   9,008.96x = 77,110,255.26
5. Step 5: Solve for x
   x = 77,110,255.26/9,008.96
6. Step 6: Final answer
   x = 8,559.29