Finding the Fourth Proportional to 30,726.53, 42,406.65 and 17,300.40

Step by Step Solution

1. Step 1: Write the proportion equation
   30,726.53 : 42,406.65 = 17,300.40 : x
2. Step 2: Convert to fraction form
   30,726.53/42,406.65 = 17,300.40/x
3. Step 3: Cross multiply
   30,726.53x = 42,406.65 × 17,300.40
4. Step 4: Simplify right side
   30,726.53x = 733,651,709.12
5. Step 5: Solve for x
   x = 733,651,709.12/30,726.53
6. Step 6: Final answer
   x = 23,876.82