Finding the Fourth Proportional to 8,900.76, 12,268.89 and 7,009.35

Step by Step Solution

1. Step 1: Write the proportion equation
   8,900.76 : 12,268.89 = 7,009.35 : x
2. Step 2: Convert to fraction form
   8,900.76/12,268.89 = 7,009.35/x
3. Step 3: Cross multiply
   8,900.76x = 12,268.89 × 7,009.35
4. Step 4: Simplify right side
   8,900.76x = 85,996,944.12
5. Step 5: Solve for x
   x = 85,996,944.12/8,900.76
6. Step 6: Final answer
   x = 9,661.75