Finding the Fourth Proportional to 30,726.21, 42,406.23 and 17,300.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,726.21 : 42,406.23 = 17,300.10 : x
2. Step 2: Convert to fraction form
   30,726.21/42,406.23 = 17,300.10/x
3. Step 3: Cross multiply
   30,726.21x = 42,406.23 × 17,300.10
4. Step 4: Simplify right side
   30,726.21x = 733,632,019.62
5. Step 5: Solve for x
   x = 733,632,019.62/30,726.21
6. Step 6: Final answer
   x = 23,876.42