Finding the Fourth Proportional to 7,200.84, 9,872.34 and 7,069.62

Step by Step Solution

1. Step 1: Write the proportion equation
   7,200.84 : 9,872.34 = 7,069.62 : x
2. Step 2: Convert to fraction form
   7,200.84/9,872.34 = 7,069.62/x
3. Step 3: Cross multiply
   7,200.84x = 9,872.34 × 7,069.62
4. Step 4: Simplify right side
   7,200.84x = 69,793,692.31
5. Step 5: Solve for x
   x = 69,793,692.31/7,200.84
6. Step 6: Final answer
   x = 9,692.44