Finding the Fourth Proportional to 9,500.50, 13,110.30 and 5,521.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,500.50 : 13,110.30 = 5,521.58 : x
2. Step 2: Convert to fraction form
   9,500.50/13,110.30 = 5,521.58/x
3. Step 3: Cross multiply
   9,500.50x = 13,110.30 × 5,521.58
4. Step 4: Simplify right side
   9,500.50x = 72,389,570.27
5. Step 5: Solve for x
   x = 72,389,570.27/9,500.50
6. Step 6: Final answer
   x = 7,619.55