Finding the Fourth Proportional to 9,774.45, 13,488.84 and 5,298.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,774.45 : 13,488.84 = 5,298.23 : x
2. Step 2: Convert to fraction form
   9,774.45/13,488.84 = 5,298.23/x
3. Step 3: Cross multiply
   9,774.45x = 13,488.84 × 5,298.23
4. Step 4: Simplify right side
   9,774.45x = 71,467,010.48
5. Step 5: Solve for x
   x = 71,467,010.48/9,774.45
6. Step 6: Final answer
   x = 7,311.61