Finding the Fourth Proportional to 30,520.64, 42,119.52 and 17,946.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,520.64 : 42,119.52 = 17,946.56 : x
2. Step 2: Convert to fraction form
   30,520.64/42,119.52 = 17,946.56/x
3. Step 3: Cross multiply
   30,520.64x = 42,119.52 × 17,946.56
4. Step 4: Simplify right side
   30,520.64x = 755,900,492.85
5. Step 5: Solve for x
   x = 755,900,492.85/30,520.64
6. Step 6: Final answer
   x = 24,766.86