Finding the Fourth Proportional to 8,900.69, 12,282.46 and 4,921.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,900.69 : 12,282.46 = 4,921.54 : x
2. Step 2: Convert to fraction form
   8,900.69/12,282.46 = 4,921.54/x
3. Step 3: Cross multiply
   8,900.69x = 12,282.46 × 4,921.54
4. Step 4: Simplify right side
   8,900.69x = 60,448,618.19
5. Step 5: Solve for x
   x = 60,448,618.19/8,900.69
6. Step 6: Final answer
   x = 6,791.45