Finding the Fourth Proportional to 13,071.91, 18,039.26 and 7,103.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,071.91 : 18,039.26 = 7,103.59 : x
2. Step 2: Convert to fraction form
   13,071.91/18,039.26 = 7,103.59/x
3. Step 3: Cross multiply
   13,071.91x = 18,039.26 × 7,103.59
4. Step 4: Simplify right side
   13,071.91x = 128,143,434.51
5. Step 5: Solve for x
   x = 128,143,434.51/13,071.91
6. Step 6: Final answer
   x = 9,802.96