Finding the Fourth Proportional to 12,577.50, 17,368.83 and 8,109.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,577.50 : 17,368.83 = 8,109.27 : x
2. Step 2: Convert to fraction form
   12,577.50/17,368.83 = 8,109.27/x
3. Step 3: Cross multiply
   12,577.50x = 17,368.83 × 8,109.27
4. Step 4: Simplify right side
   12,577.50x = 140,848,532.05
5. Step 5: Solve for x
   x = 140,848,532.05/12,577.50
6. Step 6: Final answer
   x = 11,198.45