Finding the Fourth Proportional to 6,374.50, 8,796.90 and 3,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,374.50 : 8,796.90 = 3,890.50 : x
2. Step 2: Convert to fraction form
   6,374.50/8,796.90 = 3,890.50/x
3. Step 3: Cross multiply
   6,374.50x = 8,796.90 × 3,890.50
4. Step 4: Simplify right side
   6,374.50x = 34,224,339.45
5. Step 5: Solve for x
   x = 34,224,339.45/6,374.50
6. Step 6: Final answer
   x = 5,368.94