Finding the Fourth Proportional to 9,404.70, 12,979.88 and 5,425.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,404.70 : 12,979.88 = 5,425.04 : x
2. Step 2: Convert to fraction form
   9,404.70/12,979.88 = 5,425.04/x
3. Step 3: Cross multiply
   9,404.70x = 12,979.88 × 5,425.04
4. Step 4: Simplify right side
   9,404.70x = 70,416,276.17
5. Step 5: Solve for x
   x = 70,416,276.17/9,404.70
6. Step 6: Final answer
   x = 7,487.35