Finding the Fourth Proportional to 42,016.56, 63,016.02 and 18,628.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,016.56 : 63,016.02 = 18,628.08 : x
2. Step 2: Convert to fraction form
   42,016.56/63,016.02 = 18,628.08/x
3. Step 3: Cross multiply
   42,016.56x = 63,016.02 × 18,628.08
4. Step 4: Simplify right side
   42,016.56x = 1,173,867,461.84
5. Step 5: Solve for x
   x = 1,173,867,461.84/42,016.56
6. Step 6: Final answer
   x = 27,938.21