Finding the Fourth Proportional to 9,429.99, 13,016.90 and 8,098.35

Step by Step Solution

1. Step 1: Write the proportion equation
   9,429.99 : 13,016.90 = 8,098.35 : x
2. Step 2: Convert to fraction form
   9,429.99/13,016.90 = 8,098.35/x
3. Step 3: Cross multiply
   9,429.99x = 13,016.90 × 8,098.35
4. Step 4: Simplify right side
   9,429.99x = 105,415,371.62
5. Step 5: Solve for x
   x = 105,415,371.62/9,429.99
6. Step 6: Final answer
   x = 11,178.74