Finding the Fourth Proportional to 10,864.18, 16,284.61 and 7,114.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,864.18 : 16,284.61 = 7,114.53 : x
2. Step 2: Convert to fraction form
   10,864.18/16,284.61 = 7,114.53/x
3. Step 3: Cross multiply
   10,864.18x = 16,284.61 × 7,114.53
4. Step 4: Simplify right side
   10,864.18x = 115,857,346.38
5. Step 5: Solve for x
   x = 115,857,346.38/10,864.18
6. Step 6: Final answer
   x = 10,664.16