Finding the Fourth Proportional to 8,789.03, 12,128.87 and 4,810.17

Step by Step Solution

1. Step 1: Write the proportion equation
   8,789.03 : 12,128.87 = 4,810.17 : x
2. Step 2: Convert to fraction form
   8,789.03/12,128.87 = 4,810.17/x
3. Step 3: Cross multiply
   8,789.03x = 12,128.87 × 4,810.17
4. Step 4: Simplify right side
   8,789.03x = 58,341,902.56
5. Step 5: Solve for x
   x = 58,341,902.56/8,789.03
6. Step 6: Final answer
   x = 6,638.04