Finding the Fourth Proportional to 11,020.23, 15,200.37 and 7,039.58

Step by Step Solution

1. Step 1: Write the proportion equation
   11,020.23 : 15,200.37 = 7,039.58 : x
2. Step 2: Convert to fraction form
   11,020.23/15,200.37 = 7,039.58/x
3. Step 3: Cross multiply
   11,020.23x = 15,200.37 × 7,039.58
4. Step 4: Simplify right side
   11,020.23x = 107,004,144.64
5. Step 5: Solve for x
   x = 107,004,144.64/11,020.23
6. Step 6: Final answer
   x = 9,709.79