Finding the Fourth Proportional to 13,064.72, 18,044.52 and 10,947.92

Step by Step Solution

1. Step 1: Write the proportion equation
   13,064.72 : 18,044.52 = 10,947.92 : x
2. Step 2: Convert to fraction form
   13,064.72/18,044.52 = 10,947.92/x
3. Step 3: Cross multiply
   13,064.72x = 18,044.52 × 10,947.92
4. Step 4: Simplify right side
   13,064.72x = 197,549,961.40
5. Step 5: Solve for x
   x = 197,549,961.40/13,064.72
6. Step 6: Final answer
   x = 15,120.87