Finding the Fourth Proportional to 123,822.78, 185,664.43 and 39,563.20

Step by Step Solution

1. Step 1: Write the proportion equation
   123,822.78 : 185,664.43 = 39,563.20 : x
2. Step 2: Convert to fraction form
   123,822.78/185,664.43 = 39,563.20/x
3. Step 3: Cross multiply
   123,822.78x = 185,664.43 × 39,563.20
4. Step 4: Simplify right side
   123,822.78x = 7,345,478,976.98
5. Step 5: Solve for x
   x = 7,345,478,976.98/123,822.78
6. Step 6: Final answer
   x = 59,322.52