Finding the Fourth Proportional to 6,430.70, 8,878.23 and 4,196.45

Step by Step Solution

1. Step 1: Write the proportion equation
   6,430.70 : 8,878.23 = 4,196.45 : x
2. Step 2: Convert to fraction form
   6,430.70/8,878.23 = 4,196.45/x
3. Step 3: Cross multiply
   6,430.70x = 8,878.23 × 4,196.45
4. Step 4: Simplify right side
   6,430.70x = 37,257,003.89
5. Step 5: Solve for x
   x = 37,257,003.89/6,430.70
6. Step 6: Final answer
   x = 5,793.62