Finding the Fourth Proportional to 13,071.84, 18,039.18 and 7,103.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,071.84 : 18,039.18 = 7,103.52 : x
2. Step 2: Convert to fraction form
   13,071.84/18,039.18 = 7,103.52/x
3. Step 3: Cross multiply
   13,071.84x = 18,039.18 × 7,103.52
4. Step 4: Simplify right side
   13,071.84x = 128,141,675.91
5. Step 5: Solve for x
   x = 128,141,675.91/13,071.84
6. Step 6: Final answer
   x = 9,802.88