Finding the Fourth Proportional to 8,847.58, 12,210.06 and 5,491.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,847.58 : 12,210.06 = 5,491.47 : x
2. Step 2: Convert to fraction form
   8,847.58/12,210.06 = 5,491.47/x
3. Step 3: Cross multiply
   8,847.58x = 12,210.06 × 5,491.47
4. Step 4: Simplify right side
   8,847.58x = 67,051,178.19
5. Step 5: Solve for x
   x = 67,051,178.19/8,847.58
6. Step 6: Final answer
   x = 7,578.48