Finding the Fourth Proportional to 7,221.59, 10,830.23 and 3,061.53

Step by Step Solution

1. Step 1: Write the proportion equation
   7,221.59 : 10,830.23 = 3,061.53 : x
2. Step 2: Convert to fraction form
   7,221.59/10,830.23 = 3,061.53/x
3. Step 3: Cross multiply
   7,221.59x = 10,830.23 × 3,061.53
4. Step 4: Simplify right side
   7,221.59x = 33,157,078.84
5. Step 5: Solve for x
   x = 33,157,078.84/7,221.59
6. Step 6: Final answer
   x = 4,591.38