Finding the Fourth Proportional to 9,770.37, 13,482.31 and 5,521.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,770.37 : 13,482.31 = 5,521.79 : x
2. Step 2: Convert to fraction form
   9,770.37/13,482.31 = 5,521.79/x
3. Step 3: Cross multiply
   9,770.37x = 13,482.31 × 5,521.79
4. Step 4: Simplify right side
   9,770.37x = 74,446,456.93
5. Step 5: Solve for x
   x = 74,446,456.93/9,770.37
6. Step 6: Final answer
   x = 7,619.62