Finding the Fourth Proportional to 8,814.59, 12,164.36 and 4,985.91

Step by Step Solution

1. Step 1: Write the proportion equation
   8,814.59 : 12,164.36 = 4,985.91 : x
2. Step 2: Convert to fraction form
   8,814.59/12,164.36 = 4,985.91/x
3. Step 3: Cross multiply
   8,814.59x = 12,164.36 × 4,985.91
4. Step 4: Simplify right side
   8,814.59x = 60,650,379.24
5. Step 5: Solve for x
   x = 60,650,379.24/8,814.59
6. Step 6: Final answer
   x = 6,880.68