Finding the Fourth Proportional to 13,071.82, 18,039.08 and 7,103.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,071.82 : 18,039.08 = 7,103.49 : x
2. Step 2: Convert to fraction form
   13,071.82/18,039.08 = 7,103.49/x
3. Step 3: Cross multiply
   13,071.82x = 18,039.08 × 7,103.49
4. Step 4: Simplify right side
   13,071.82x = 128,140,424.39
5. Step 5: Solve for x
   x = 128,140,424.39/13,071.82
6. Step 6: Final answer
   x = 9,802.80