Finding the Fourth Proportional to 13,077.49, 18,046.97 and 7,109.14

Step by Step Solution

1. Step 1: Write the proportion equation
   13,077.49 : 18,046.97 = 7,109.14 : x
2. Step 2: Convert to fraction form
   13,077.49/18,046.97 = 7,109.14/x
3. Step 3: Cross multiply
   13,077.49x = 18,046.97 × 7,109.14
4. Step 4: Simplify right side
   13,077.49x = 128,298,436.31
5. Step 5: Solve for x
   x = 128,298,436.31/13,077.49
6. Step 6: Final answer
   x = 9,810.63