Finding the Fourth Proportional to 5,419.85, 7,479.32 and 3,061.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,419.85 : 7,479.32 = 3,061.98 : x
2. Step 2: Convert to fraction form
   5,419.85/7,479.32 = 3,061.98/x
3. Step 3: Cross multiply
   5,419.85x = 7,479.32 × 3,061.98
4. Step 4: Simplify right side
   5,419.85x = 22,901,512.94
5. Step 5: Solve for x
   x = 22,901,512.94/5,419.85
6. Step 6: Final answer
   x = 4,225.49