Finding the Fourth Proportional to 9,404.76, 12,979.50 and 5,213.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,404.76 : 12,979.50 = 5,213.82 : x
2. Step 2: Convert to fraction form
   9,404.76/12,979.50 = 5,213.82/x
3. Step 3: Cross multiply
   9,404.76x = 12,979.50 × 5,213.82
4. Step 4: Simplify right side
   9,404.76x = 67,672,776.69
5. Step 5: Solve for x
   x = 67,672,776.69/9,404.76
6. Step 6: Final answer
   x = 7,195.59