Finding the Fourth Proportional to 10,215.81, 14,103.06 and 7,066.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,215.81 : 14,103.06 = 7,066.53 : x
2. Step 2: Convert to fraction form
   10,215.81/14,103.06 = 7,066.53/x
3. Step 3: Cross multiply
   10,215.81x = 14,103.06 × 7,066.53
4. Step 4: Simplify right side
   10,215.81x = 99,659,696.58
5. Step 5: Solve for x
   x = 99,659,696.58/10,215.81
6. Step 6: Final answer
   x = 9,755.44