Finding the Fourth Proportional to 12,053.28, 18,072.18 and 5,805.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,053.28 : 18,072.18 = 5,805.12 : x
2. Step 2: Convert to fraction form
   12,053.28/18,072.18 = 5,805.12/x
3. Step 3: Cross multiply
   12,053.28x = 18,072.18 × 5,805.12
4. Step 4: Simplify right side
   12,053.28x = 104,911,173.56
5. Step 5: Solve for x
   x = 104,911,173.56/12,053.28
6. Step 6: Final answer
   x = 8,703.95