Finding the Fourth Proportional to 5,419.34, 7,478.63 and 3,061.43

Step by Step Solution

1. Step 1: Write the proportion equation
   5,419.34 : 7,478.63 = 3,061.43 : x
2. Step 2: Convert to fraction form
   5,419.34/7,478.63 = 3,061.43/x
3. Step 3: Cross multiply
   5,419.34x = 7,478.63 × 3,061.43
4. Step 4: Simplify right side
   5,419.34x = 22,895,289.07
5. Step 5: Solve for x
   x = 22,895,289.07/5,419.34
6. Step 6: Final answer
   x = 4,224.74