Finding the Fourth Proportional to 12,844.86, 17,725.05 and 7,255.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,844.86 : 17,725.05 = 7,255.50 : x
2. Step 2: Convert to fraction form
   12,844.86/17,725.05 = 7,255.50/x
3. Step 3: Cross multiply
   12,844.86x = 17,725.05 × 7,255.50
4. Step 4: Simplify right side
   12,844.86x = 128,604,100.28
5. Step 5: Solve for x
   x = 128,604,100.28/12,844.86
6. Step 6: Final answer
   x = 10,012.11