Finding the Fourth Proportional to 9,980.24, 13,772.83 and 5,504.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,980.24 : 13,772.83 = 5,504.15 : x
2. Step 2: Convert to fraction form
   9,980.24/13,772.83 = 5,504.15/x
3. Step 3: Cross multiply
   9,980.24x = 13,772.83 × 5,504.15
4. Step 4: Simplify right side
   9,980.24x = 75,807,722.24
5. Step 5: Solve for x
   x = 75,807,722.24/9,980.24
6. Step 6: Final answer
   x = 7,595.78