Finding the Fourth Proportional to 30,755.59, 42,443.06 and 18,005.99

Step by Step Solution

1. Step 1: Write the proportion equation
   30,755.59 : 42,443.06 = 18,005.99 : x
2. Step 2: Convert to fraction form
   30,755.59/42,443.06 = 18,005.99/x
3. Step 3: Cross multiply
   30,755.59x = 42,443.06 × 18,005.99
4. Step 4: Simplify right side
   30,755.59x = 764,229,011.68
5. Step 5: Solve for x
   x = 764,229,011.68/30,755.59
6. Step 6: Final answer
   x = 24,848.46