Finding the Fourth Proportional to 30,768.32, 42,470.83 and 18,025.61

Step by Step Solution

1. Step 1: Write the proportion equation
   30,768.32 : 42,470.83 = 18,025.61 : x
2. Step 2: Convert to fraction form
   30,768.32/42,470.83 = 18,025.61/x
3. Step 3: Cross multiply
   30,768.32x = 42,470.83 × 18,025.61
4. Step 4: Simplify right side
   30,768.32x = 765,562,428.13
5. Step 5: Solve for x
   x = 765,562,428.13/30,768.32
6. Step 6: Final answer
   x = 24,881.51