Finding the Fourth Proportional to 8,900.73, 12,284.60 and 5,365.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,900.73 : 12,284.60 = 5,365.89 : x
2. Step 2: Convert to fraction form
   8,900.73/12,284.60 = 5,365.89/x
3. Step 3: Cross multiply
   8,900.73x = 12,284.60 × 5,365.89
4. Step 4: Simplify right side
   8,900.73x = 65,917,785.46
5. Step 5: Solve for x
   x = 65,917,785.46/8,900.73
6. Step 6: Final answer
   x = 7,405.89