Finding the Fourth Proportional to 135,997.50, 204,003.54 and 42,510.54

Step by Step Solution

1. Step 1: Write the proportion equation
   135,997.50 : 204,003.54 = 42,510.54 : x
2. Step 2: Convert to fraction form
   135,997.50/204,003.54 = 42,510.54/x
3. Step 3: Cross multiply
   135,997.50x = 204,003.54 × 42,510.54
4. Step 4: Simplify right side
   135,997.50x = 8,672,300,647.31
5. Step 5: Solve for x
   x = 8,672,300,647.31/135,997.50
6. Step 6: Final answer
   x = 63,768.09