Finding the Fourth Proportional to 12,844.50, 17,723.61 and 7,178.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,844.50 : 17,723.61 = 7,178.52 : x
2. Step 2: Convert to fraction form
   12,844.50/17,723.61 = 7,178.52/x
3. Step 3: Cross multiply
   12,844.50x = 17,723.61 × 7,178.52
4. Step 4: Simplify right side
   12,844.50x = 127,229,288.86
5. Step 5: Solve for x
   x = 127,229,288.86/12,844.50
6. Step 6: Final answer
   x = 9,905.35