Finding the Fourth Proportional to 9,398.74, 12,969.72 and 5,148.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,398.74 : 12,969.72 = 5,148.96 : x
2. Step 2: Convert to fraction form
   9,398.74/12,969.72 = 5,148.96/x
3. Step 3: Cross multiply
   9,398.74x = 12,969.72 × 5,148.96
4. Step 4: Simplify right side
   9,398.74x = 66,780,569.49
5. Step 5: Solve for x
   x = 66,780,569.49/9,398.74
6. Step 6: Final answer
   x = 7,105.27