Finding the Fourth Proportional to 13,073.47, 18,041.74 and 7,105.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,073.47 : 18,041.74 = 7,105.52 : x
2. Step 2: Convert to fraction form
   13,073.47/18,041.74 = 7,105.52/x
3. Step 3: Cross multiply
   13,073.47x = 18,041.74 × 7,105.52
4. Step 4: Simplify right side
   13,073.47x = 128,195,971.75
5. Step 5: Solve for x
   x = 128,195,971.75/13,073.47
6. Step 6: Final answer
   x = 9,805.81