Finding the Fourth Proportional to 12,841.68, 17,717.76 and 7,536.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,841.68 : 17,717.76 = 7,536.72 : x
2. Step 2: Convert to fraction form
   12,841.68/17,717.76 = 7,536.72/x
3. Step 3: Cross multiply
   12,841.68x = 17,717.76 × 7,536.72
4. Step 4: Simplify right side
   12,841.68x = 133,533,796.15
5. Step 5: Solve for x
   x = 133,533,796.15/12,841.68
6. Step 6: Final answer
   x = 10,398.47