Finding the Fourth Proportional to 13,042.37, 19,519.82 and 10,702.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,042.37 : 19,519.82 = 10,702.28 : x
2. Step 2: Convert to fraction form
   13,042.37/19,519.82 = 10,702.28/x
3. Step 3: Cross multiply
   13,042.37x = 19,519.82 × 10,702.28
4. Step 4: Simplify right side
   13,042.37x = 208,906,614.61
5. Step 5: Solve for x
   x = 208,906,614.61/13,042.37
6. Step 6: Final answer
   x = 16,017.53