Finding the Fourth Proportional to 6,437.87, 8,883.42 and 3,784.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,437.87 : 8,883.42 = 3,784.31 : x
2. Step 2: Convert to fraction form
   6,437.87/8,883.42 = 3,784.31/x
3. Step 3: Cross multiply
   6,437.87x = 8,883.42 × 3,784.31
4. Step 4: Simplify right side
   6,437.87x = 33,617,570.72
5. Step 5: Solve for x
   x = 33,617,570.72/6,437.87
6. Step 6: Final answer
   x = 5,221.85