Finding the Fourth Proportional to 30,691.98, 42,349.64 and 17,262.18

Step by Step Solution

1. Step 1: Write the proportion equation
   30,691.98 : 42,349.64 = 17,262.18 : x
2. Step 2: Convert to fraction form
   30,691.98/42,349.64 = 17,262.18/x
3. Step 3: Cross multiply
   30,691.98x = 42,349.64 × 17,262.18
4. Step 4: Simplify right side
   30,691.98x = 731,047,022.30
5. Step 5: Solve for x
   x = 731,047,022.30/30,691.98
6. Step 6: Final answer
   x = 23,818.83