Finding the Fourth Proportional to 30,726.52, 42,402.72 and 17,298

Step by Step Solution

1. Step 1: Write the proportion equation
   30,726.52 : 42,402.72 = 17,298 : x
2. Step 2: Convert to fraction form
   30,726.52/42,402.72 = 17,298/x
3. Step 3: Cross multiply
   30,726.52x = 42,402.72 × 17,298
4. Step 4: Simplify right side
   30,726.52x = 733,482,250.56
5. Step 5: Solve for x
   x = 733,482,250.56/30,726.52
6. Step 6: Final answer
   x = 23,871.31