Finding the Fourth Proportional to 12,932.44, 17,853.54 and 8,705.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,932.44 : 17,853.54 = 8,705.72 : x
2. Step 2: Convert to fraction form
   12,932.44/17,853.54 = 8,705.72/x
3. Step 3: Cross multiply
   12,932.44x = 17,853.54 × 8,705.72
4. Step 4: Simplify right side
   12,932.44x = 155,427,920.25
5. Step 5: Solve for x
   x = 155,427,920.25/12,932.44
6. Step 6: Final answer
   x = 12,018.45