Finding the Fourth Proportional to 7,196.34, 9,866.18 and 7,065.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,196.34 : 9,866.18 = 7,065.12 : x
2. Step 2: Convert to fraction form
   7,196.34/9,866.18 = 7,065.12/x
3. Step 3: Cross multiply
   7,196.34x = 9,866.18 × 7,065.12
4. Step 4: Simplify right side
   7,196.34x = 69,705,710.32
5. Step 5: Solve for x
   x = 69,705,710.32/7,196.34
6. Step 6: Final answer
   x = 9,686.27