Finding the Fourth Proportional to 9,667.18, 14,490.72 and 5,498.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,667.18 : 14,490.72 = 5,498.20 : x
2. Step 2: Convert to fraction form
   9,667.18/14,490.72 = 5,498.20/x
3. Step 3: Cross multiply
   9,667.18x = 14,490.72 × 5,498.20
4. Step 4: Simplify right side
   9,667.18x = 79,672,876.70
5. Step 5: Solve for x
   x = 79,672,876.70/9,667.18
6. Step 6: Final answer
   x = 8,241.58