Finding the Fourth Proportional to 8,698.85, 12,004.33 and 4,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,698.85 : 12,004.33 = 4,870.50 : x
2. Step 2: Convert to fraction form
   8,698.85/12,004.33 = 4,870.50/x
3. Step 3: Cross multiply
   8,698.85x = 12,004.33 × 4,870.50
4. Step 4: Simplify right side
   8,698.85x = 58,467,089.27
5. Step 5: Solve for x
   x = 58,467,089.27/8,698.85
6. Step 6: Final answer
   x = 6,721.24