Finding the Fourth Proportional to 30,714.39, 42,385.76 and 17,285.67

Step by Step Solution

1. Step 1: Write the proportion equation
   30,714.39 : 42,385.76 = 17,285.67 : x
2. Step 2: Convert to fraction form
   30,714.39/42,385.76 = 17,285.67/x
3. Step 3: Cross multiply
   30,714.39x = 42,385.76 × 17,285.67
4. Step 4: Simplify right side
   30,714.39x = 732,666,173.63
5. Step 5: Solve for x
   x = 732,666,173.63/30,714.39
6. Step 6: Final answer
   x = 23,854.17