Finding the Fourth Proportional to 8,919.32, 12,308.46 and 4,886.14

Step by Step Solution

1. Step 1: Write the proportion equation
   8,919.32 : 12,308.46 = 4,886.14 : x
2. Step 2: Convert to fraction form
   8,919.32/12,308.46 = 4,886.14/x
3. Step 3: Cross multiply
   8,919.32x = 12,308.46 × 4,886.14
4. Step 4: Simplify right side
   8,919.32x = 60,140,858.74
5. Step 5: Solve for x
   x = 60,140,858.74/8,919.32
6. Step 6: Final answer
   x = 6,742.76