Finding the Fourth Proportional to 8,587.00, 12,869.73 and 4,638.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,587.00 : 12,869.73 = 4,638.10 : x
2. Step 2: Convert to fraction form
   8,587.00/12,869.73 = 4,638.10/x
3. Step 3: Cross multiply
   8,587.00x = 12,869.73 × 4,638.10
4. Step 4: Simplify right side
   8,587.00x = 59,691,030.36
5. Step 5: Solve for x
   x = 59,691,030.36/8,587.00
6. Step 6: Final answer
   x = 6,951.33