Finding the Fourth Proportional to 12,436.03, 17,161.88 and 7,131.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,436.03 : 17,161.88 = 7,131.34 : x
2. Step 2: Convert to fraction form
   12,436.03/17,161.88 = 7,131.34/x
3. Step 3: Cross multiply
   12,436.03x = 17,161.88 × 7,131.34
4. Step 4: Simplify right side
   12,436.03x = 122,387,187.11
5. Step 5: Solve for x
   x = 122,387,187.11/12,436.03
6. Step 6: Final answer
   x = 9,841.34