Finding the Fourth Proportional to 6,415.52, 8,855.60 and 3,761.96

Step by Step Solution

1. Step 1: Write the proportion equation
   6,415.52 : 8,855.60 = 3,761.96 : x
2. Step 2: Convert to fraction form
   6,415.52/8,855.60 = 3,761.96/x
3. Step 3: Cross multiply
   6,415.52x = 8,855.60 × 3,761.96
4. Step 4: Simplify right side
   6,415.52x = 33,314,349.89
5. Step 5: Solve for x
   x = 33,314,349.89/6,415.52
6. Step 6: Final answer
   x = 5,192.78