Finding the Fourth Proportional to 30,537.76, 42,141.72 and 17,108.76

Step by Step Solution

1. Step 1: Write the proportion equation
   30,537.76 : 42,141.72 = 17,108.76 : x
2. Step 2: Convert to fraction form
   30,537.76/42,141.72 = 17,108.76/x
3. Step 3: Cross multiply
   30,537.76x = 42,141.72 × 17,108.76
4. Step 4: Simplify right side
   30,537.76x = 720,992,573.47
5. Step 5: Solve for x
   x = 720,992,573.47/30,537.76
6. Step 6: Final answer
   x = 23,609.87