Finding the Fourth Proportional to 12,841.18, 17,719.56 and 7,175.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,841.18 : 17,719.56 = 7,175.47 : x
2. Step 2: Convert to fraction form
   12,841.18/17,719.56 = 7,175.47/x
3. Step 3: Cross multiply
   12,841.18x = 17,719.56 × 7,175.47
4. Step 4: Simplify right side
   12,841.18x = 127,146,171.19
5. Step 5: Solve for x
   x = 127,146,171.19/12,841.18
6. Step 6: Final answer
   x = 9,901.44