Finding the Fourth Proportional to 30,575.75, 42,196.37 and 17,147.77

Step by Step Solution

1. Step 1: Write the proportion equation
   30,575.75 : 42,196.37 = 17,147.77 : x
2. Step 2: Convert to fraction form
   30,575.75/42,196.37 = 17,147.77/x
3. Step 3: Cross multiply
   30,575.75x = 42,196.37 × 17,147.77
4. Step 4: Simplify right side
   30,575.75x = 723,573,456.37
5. Step 5: Solve for x
   x = 723,573,456.37/30,575.75
6. Step 6: Final answer
   x = 23,664.95