Finding the Fourth Proportional to 30,710.50, 42,380.66 and 17,281.98

Step by Step Solution

1. Step 1: Write the proportion equation
   30,710.50 : 42,380.66 = 17,281.98 : x
2. Step 2: Convert to fraction form
   30,710.50/42,380.66 = 17,281.98/x
3. Step 3: Cross multiply
   30,710.50x = 42,380.66 × 17,281.98
4. Step 4: Simplify right side
   30,710.50x = 732,421,718.51
5. Step 5: Solve for x
   x = 732,421,718.51/30,710.50
6. Step 6: Final answer
   x = 23,849.23