Finding the Fourth Proportional to 9,974.54, 13,763.81 and 5,498.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,974.54 : 13,763.81 = 5,498.03 : x
2. Step 2: Convert to fraction form
   9,974.54/13,763.81 = 5,498.03/x
3. Step 3: Cross multiply
   9,974.54x = 13,763.81 × 5,498.03
4. Step 4: Simplify right side
   9,974.54x = 75,673,888.45
5. Step 5: Solve for x
   x = 75,673,888.45/9,974.54
6. Step 6: Final answer
   x = 7,586.70