Finding the Fourth Proportional to 9,404.76, 12,979 and 5,212.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,404.76 : 12,979 = 5,212.74 : x
2. Step 2: Convert to fraction form
   9,404.76/12,979 = 5,212.74/x
3. Step 3: Cross multiply
   9,404.76x = 12,979 × 5,212.74
4. Step 4: Simplify right side
   9,404.76x = 67,656,152.46
5. Step 5: Solve for x
   x = 67,656,152.46/9,404.76
6. Step 6: Final answer
   x = 7,193.82