Finding the Fourth Proportional to 11,086.84, 16,644.78 and 7,412.68

Step by Step Solution

1. Step 1: Write the proportion equation
   11,086.84 : 16,644.78 = 7,412.68 : x
2. Step 2: Convert to fraction form
   11,086.84/16,644.78 = 7,412.68/x
3. Step 3: Cross multiply
   11,086.84x = 16,644.78 × 7,412.68
4. Step 4: Simplify right side
   11,086.84x = 123,382,427.81
5. Step 5: Solve for x
   x = 123,382,427.81/11,086.84
6. Step 6: Final answer
   x = 11,128.73