Finding the Fourth Proportional to 12,741, 17,582.70 and 7,152.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,741 : 17,582.70 = 7,152.12 : x
2. Step 2: Convert to fraction form
   12,741/17,582.70 = 7,152.12/x
3. Step 3: Cross multiply
   12,741x = 17,582.70 × 7,152.12
4. Step 4: Simplify right side
   12,741x = 125,753,580.32
5. Step 5: Solve for x
   x = 125,753,580.32/12,741
6. Step 6: Final answer
   x = 9,869.99