Finding the Fourth Proportional to 7,221.40, 10,833.24 and 3,061.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,221.40 : 10,833.24 = 3,061.42 : x
2. Step 2: Convert to fraction form
   7,221.40/10,833.24 = 3,061.42/x
3. Step 3: Cross multiply
   7,221.40x = 10,833.24 × 3,061.42
4. Step 4: Simplify right side
   7,221.40x = 33,165,097.60
5. Step 5: Solve for x
   x = 33,165,097.60/7,221.40
6. Step 6: Final answer
   x = 4,592.61