Finding the Fourth Proportional to 10,560.28, 14,570.71 and 7,210.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,560.28 : 14,570.71 = 7,210.07 : x
2. Step 2: Convert to fraction form
   10,560.28/14,570.71 = 7,210.07/x
3. Step 3: Cross multiply
   10,560.28x = 14,570.71 × 7,210.07
4. Step 4: Simplify right side
   10,560.28x = 105,055,839.05
5. Step 5: Solve for x
   x = 105,055,839.05/10,560.28
6. Step 6: Final answer
   x = 9,948.21