Finding the Fourth Proportional to 7,221.95, 10,830.71 and 3,061.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,221.95 : 10,830.71 = 3,061.88 : x
2. Step 2: Convert to fraction form
   7,221.95/10,830.71 = 3,061.88/x
3. Step 3: Cross multiply
   7,221.95x = 10,830.71 × 3,061.88
4. Step 4: Simplify right side
   7,221.95x = 33,162,334.33
5. Step 5: Solve for x
   x = 33,162,334.33/7,221.95
6. Step 6: Final answer
   x = 4,591.88