Finding the Fourth Proportional to 9,808.99, 13,536.06 and 5,616.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,808.99 : 13,536.06 = 5,616.43 : x
2. Step 2: Convert to fraction form
   9,808.99/13,536.06 = 5,616.43/x
3. Step 3: Cross multiply
   9,808.99x = 13,536.06 × 5,616.43
4. Step 4: Simplify right side
   9,808.99x = 76,024,333.47
5. Step 5: Solve for x
   x = 76,024,333.47/9,808.99
6. Step 6: Final answer
   x = 7,750.48