Finding the Fourth Proportional to 30,686.04, 42,344.92 and 17,073.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,686.04 : 42,344.92 = 17,073.72 : x
2. Step 2: Convert to fraction form
   30,686.04/42,344.92 = 17,073.72/x
3. Step 3: Cross multiply
   30,686.04x = 42,344.92 × 17,073.72
4. Step 4: Simplify right side
   30,686.04x = 722,985,264.82
5. Step 5: Solve for x
   x = 722,985,264.82/30,686.04
6. Step 6: Final answer
   x = 23,560.72