Finding the Fourth Proportional to 8,900.05, 12,281.12 and 4,920.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,900.05 : 12,281.12 = 4,920.52 : x
2. Step 2: Convert to fraction form
   8,900.05/12,281.12 = 4,920.52/x
3. Step 3: Cross multiply
   8,900.05x = 12,281.12 × 4,920.52
4. Step 4: Simplify right side
   8,900.05x = 60,429,435.18
5. Step 5: Solve for x
   x = 60,429,435.18/8,900.05
6. Step 6: Final answer
   x = 6,789.79