Finding the Fourth Proportional to 8,849.74, 12,212.59 and 4,870.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,849.74 : 12,212.59 = 4,870.75 : x
2. Step 2: Convert to fraction form
   8,849.74/12,212.59 = 4,870.75/x
3. Step 3: Cross multiply
   8,849.74x = 12,212.59 × 4,870.75
4. Step 4: Simplify right side
   8,849.74x = 59,484,387.33
5. Step 5: Solve for x
   x = 59,484,387.33/8,849.74
6. Step 6: Final answer
   x = 6,721.60