Finding the Fourth Proportional to 5,800.78, 8,703.34 and 3,460.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,800.78 : 8,703.34 = 3,460.42 : x
2. Step 2: Convert to fraction form
   5,800.78/8,703.34 = 3,460.42/x
3. Step 3: Cross multiply
   5,800.78x = 8,703.34 × 3,460.42
4. Step 4: Simplify right side
   5,800.78x = 30,117,211.80
5. Step 5: Solve for x
   x = 30,117,211.80/5,800.78
6. Step 6: Final answer
   x = 5,191.92