Finding the Fourth Proportional to 9,404.46, 12,979.50 and 5,426.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,404.46 : 12,979.50 = 5,426.94 : x
2. Step 2: Convert to fraction form
   9,404.46/12,979.50 = 5,426.94/x
3. Step 3: Cross multiply
   9,404.46x = 12,979.50 × 5,426.94
4. Step 4: Simplify right side
   9,404.46x = 70,438,967.73
5. Step 5: Solve for x
   x = 70,438,967.73/9,404.46
6. Step 6: Final answer
   x = 7,489.95