Finding the Fourth Proportional to 9,520.59, 13,138.50 and 5,328.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,520.59 : 13,138.50 = 5,328.84 : x
2. Step 2: Convert to fraction form
   9,520.59/13,138.50 = 5,328.84/x
3. Step 3: Cross multiply
   9,520.59x = 13,138.50 × 5,328.84
4. Step 4: Simplify right side
   9,520.59x = 70,012,964.34
5. Step 5: Solve for x
   x = 70,012,964.34/9,520.59
6. Step 6: Final answer
   x = 7,353.85