Finding the Fourth Proportional to 9,048.20, 12,486.35 and 5,069.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,048.20 : 12,486.35 = 5,069.30 : x
2. Step 2: Convert to fraction form
   9,048.20/12,486.35 = 5,069.30/x
3. Step 3: Cross multiply
   9,048.20x = 12,486.35 × 5,069.30
4. Step 4: Simplify right side
   9,048.20x = 63,297,004.30
5. Step 5: Solve for x
   x = 63,297,004.30/9,048.20
6. Step 6: Final answer
   x = 6,995.54