Finding the Fourth Proportional to 5,419.58, 7,478.61 and 3,061.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,419.58 : 7,478.61 = 3,061.94 : x
2. Step 2: Convert to fraction form
   5,419.58/7,478.61 = 3,061.94/x
3. Step 3: Cross multiply
   5,419.58x = 7,478.61 × 3,061.94
4. Step 4: Simplify right side
   5,419.58x = 22,899,055.10
5. Step 5: Solve for x
   x = 22,899,055.10/5,419.58
6. Step 6: Final answer
   x = 4,225.25