Finding the Fourth Proportional to 9,148.32, 12,624.78 and 5,169.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,148.32 : 12,624.78 = 5,169.48 : x
2. Step 2: Convert to fraction form
   9,148.32/12,624.78 = 5,169.48/x
3. Step 3: Cross multiply
   9,148.32x = 12,624.78 × 5,169.48
4. Step 4: Simplify right side
   9,148.32x = 65,263,547.71
5. Step 5: Solve for x
   x = 65,263,547.71/9,148.32
6. Step 6: Final answer
   x = 7,133.94