Finding the Fourth Proportional to 5,006.72, 7,502.78 and 3,419.93

Step by Step Solution

1. Step 1: Write the proportion equation
   5,006.72 : 7,502.78 = 3,419.93 : x
2. Step 2: Convert to fraction form
   5,006.72/7,502.78 = 3,419.93/x
3. Step 3: Cross multiply
   5,006.72x = 7,502.78 × 3,419.93
4. Step 4: Simplify right side
   5,006.72x = 25,658,982.41
5. Step 5: Solve for x
   x = 25,658,982.41/5,006.72
6. Step 6: Final answer
   x = 5,124.91