Finding the Fourth Proportional to 5,876.36, 8,103.86 and 4,685.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,876.36 : 8,103.86 = 4,685.30 : x
2. Step 2: Convert to fraction form
   5,876.36/8,103.86 = 4,685.30/x
3. Step 3: Cross multiply
   5,876.36x = 8,103.86 × 4,685.30
4. Step 4: Simplify right side
   5,876.36x = 37,968,951.31
5. Step 5: Solve for x
   x = 37,968,951.31/5,876.36
6. Step 6: Final answer
   x = 6,461.31