Finding the Fourth Proportional to 5,320.69, 7,981.47 and 2,200.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,320.69 : 7,981.47 = 2,200.10 : x
2. Step 2: Convert to fraction form
   5,320.69/7,981.47 = 2,200.10/x
3. Step 3: Cross multiply
   5,320.69x = 7,981.47 × 2,200.10
4. Step 4: Simplify right side
   5,320.69x = 17,559,992.24
5. Step 5: Solve for x
   x = 17,559,992.24/5,320.69
6. Step 6: Final answer
   x = 3,300.32