Finding the Fourth Proportional to 10,570.69, 14,593.53 and 7,218.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,570.69 : 14,593.53 = 7,218.37 : x
2. Step 2: Convert to fraction form
   10,570.69/14,593.53 = 7,218.37/x
3. Step 3: Cross multiply
   10,570.69x = 14,593.53 × 7,218.37
4. Step 4: Simplify right side
   10,570.69x = 105,341,499.15
5. Step 5: Solve for x
   x = 105,341,499.15/10,570.69
6. Step 6: Final answer
   x = 9,965.43