Finding the Fourth Proportional to 9,290.99, 12,817.39 and 5,514.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,290.99 : 12,817.39 = 5,514.32 : x
2. Step 2: Convert to fraction form
   9,290.99/12,817.39 = 5,514.32/x
3. Step 3: Cross multiply
   9,290.99x = 12,817.39 × 5,514.32
4. Step 4: Simplify right side
   9,290.99x = 70,679,208.28
5. Step 5: Solve for x
   x = 70,679,208.28/9,290.99
6. Step 6: Final answer
   x = 7,607.28