Finding the Fourth Proportional to 12,699.67, 17,524.04 and 7,322.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,699.67 : 17,524.04 = 7,322.05 : x
2. Step 2: Convert to fraction form
   12,699.67/17,524.04 = 7,322.05/x
3. Step 3: Cross multiply
   12,699.67x = 17,524.04 × 7,322.05
4. Step 4: Simplify right side
   12,699.67x = 128,311,809.46
5. Step 5: Solve for x
   x = 128,311,809.46/12,699.67
6. Step 6: Final answer
   x = 10,103.55