Finding the Fourth Proportional to 11,113.39, 16,645.41 and 7,984.01

Step by Step Solution

1. Step 1: Write the proportion equation
   11,113.39 : 16,645.41 = 7,984.01 : x
2. Step 2: Convert to fraction form
   11,113.39/16,645.41 = 7,984.01/x
3. Step 3: Cross multiply
   11,113.39x = 16,645.41 × 7,984.01
4. Step 4: Simplify right side
   11,113.39x = 132,897,036.67
5. Step 5: Solve for x
   x = 132,897,036.67/11,113.39
6. Step 6: Final answer
   x = 11,958.28