Finding the Fourth Proportional to 9,819.48, 13,532.22 and 7,020.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,819.48 : 13,532.22 = 7,020.12 : x
2. Step 2: Convert to fraction form
   9,819.48/13,532.22 = 7,020.12/x
3. Step 3: Cross multiply
   9,819.48x = 13,532.22 × 7,020.12
4. Step 4: Simplify right side
   9,819.48x = 94,997,808.27
5. Step 5: Solve for x
   x = 94,997,808.27/9,819.48
6. Step 6: Final answer
   x = 9,674.42