Finding the Fourth Proportional to 10,043.05, 13,860.69 and 7,169.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,043.05 : 13,860.69 = 7,169.57 : x
2. Step 2: Convert to fraction form
   10,043.05/13,860.69 = 7,169.57/x
3. Step 3: Cross multiply
   10,043.05x = 13,860.69 × 7,169.57
4. Step 4: Simplify right side
   10,043.05x = 99,375,187.20
5. Step 5: Solve for x
   x = 99,375,187.20/10,043.05
6. Step 6: Final answer
   x = 9,894.92