Finding the Fourth Proportional to 6,443.10, 8,907.73 and 4,761.86

Step by Step Solution

1. Step 1: Write the proportion equation
   6,443.10 : 8,907.73 = 4,761.86 : x
2. Step 2: Convert to fraction form
   6,443.10/8,907.73 = 4,761.86/x
3. Step 3: Cross multiply
   6,443.10x = 8,907.73 × 4,761.86
4. Step 4: Simplify right side
   6,443.10x = 42,417,306.73
5. Step 5: Solve for x
   x = 42,417,306.73/6,443.10
6. Step 6: Final answer
   x = 6,583.37