Finding the Fourth Proportional to 17,865.72, 26,801.06 and 10,372.82

Step by Step Solution

1. Step 1: Write the proportion equation
   17,865.72 : 26,801.06 = 10,372.82 : x
2. Step 2: Convert to fraction form
   17,865.72/26,801.06 = 10,372.82/x
3. Step 3: Cross multiply
   17,865.72x = 26,801.06 × 10,372.82
4. Step 4: Simplify right side
   17,865.72x = 278,002,385.32
5. Step 5: Solve for x
   x = 278,002,385.32/17,865.72
6. Step 6: Final answer
   x = 15,560.66