Finding the Fourth Proportional to 30,742.64, 42,425.82 and 17,997.08

Step by Step Solution

1. Step 1: Write the proportion equation
   30,742.64 : 42,425.82 = 17,997.08 : x
2. Step 2: Convert to fraction form
   30,742.64/42,425.82 = 17,997.08/x
3. Step 3: Cross multiply
   30,742.64x = 42,425.82 × 17,997.08
4. Step 4: Simplify right side
   30,742.64x = 763,540,876.61
5. Step 5: Solve for x
   x = 763,540,876.61/30,742.64
6. Step 6: Final answer
   x = 24,836.54