Finding the Fourth Proportional to 9,949.98, 13,730.78 and 5,473.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,949.98 : 13,730.78 = 5,473.70 : x
2. Step 2: Convert to fraction form
   9,949.98/13,730.78 = 5,473.70/x
3. Step 3: Cross multiply
   9,949.98x = 13,730.78 × 5,473.70
4. Step 4: Simplify right side
   9,949.98x = 75,158,170.49
5. Step 5: Solve for x
   x = 75,158,170.49/9,949.98
6. Step 6: Final answer
   x = 7,553.60