Finding the Fourth Proportional to 12,841.83, 17,720.42 and 7,176.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,841.83 : 17,720.42 = 7,176.83 : x
2. Step 2: Convert to fraction form
   12,841.83/17,720.42 = 7,176.83/x
3. Step 3: Cross multiply
   12,841.83x = 17,720.42 × 7,176.83
4. Step 4: Simplify right side
   12,841.83x = 127,176,317.38
5. Step 5: Solve for x
   x = 127,176,317.38/12,841.83
6. Step 6: Final answer
   x = 9,903.29