Finding the Fourth Proportional to 8,178.63, 12,269.93 and 2,632.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,178.63 : 12,269.93 = 2,632.50 : x
2. Step 2: Convert to fraction form
   8,178.63/12,269.93 = 2,632.50/x
3. Step 3: Cross multiply
   8,178.63x = 12,269.93 × 2,632.50
4. Step 4: Simplify right side
   8,178.63x = 32,300,590.73
5. Step 5: Solve for x
   x = 32,300,590.73/8,178.63
6. Step 6: Final answer
   x = 3,949.39