Finding the Fourth Proportional to 9,200.26, 12,698.01 and 5,423.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,200.26 : 12,698.01 = 5,423.20 : x
2. Step 2: Convert to fraction form
   9,200.26/12,698.01 = 5,423.20/x
3. Step 3: Cross multiply
   9,200.26x = 12,698.01 × 5,423.20
4. Step 4: Simplify right side
   9,200.26x = 68,863,899.91
5. Step 5: Solve for x
   x = 68,863,899.91/9,200.26
6. Step 6: Final answer
   x = 7,485.00