Finding the Fourth Proportional to 30,623.08, 42,270.50 and 18,047

Step by Step Solution

1. Step 1: Write the proportion equation
   30,623.08 : 42,270.50 = 18,047 : x
2. Step 2: Convert to fraction form
   30,623.08/42,270.50 = 18,047/x
3. Step 3: Cross multiply
   30,623.08x = 42,270.50 × 18,047
4. Step 4: Simplify right side
   30,623.08x = 762,855,713.50
5. Step 5: Solve for x
   x = 762,855,713.50/30,623.08
6. Step 6: Final answer
   x = 24,911.14