Finding the Fourth Proportional to 56,196.72, 84,266.73 and 18,743.54

Step by Step Solution

1. Step 1: Write the proportion equation
   56,196.72 : 84,266.73 = 18,743.54 : x
2. Step 2: Convert to fraction form
   56,196.72/84,266.73 = 18,743.54/x
3. Step 3: Cross multiply
   56,196.72x = 84,266.73 × 18,743.54
4. Step 4: Simplify right side
   56,196.72x = 1,579,456,403.09
5. Step 5: Solve for x
   x = 1,579,456,403.09/56,196.72
6. Step 6: Final answer
   x = 28,105.85