Finding the Fourth Proportional to 143,255.94, 214,977.15 and 54,510.18

Step by Step Solution

1. Step 1: Write the proportion equation
   143,255.94 : 214,977.15 = 54,510.18 : x
2. Step 2: Convert to fraction form
   143,255.94/214,977.15 = 54,510.18/x
3. Step 3: Cross multiply
   143,255.94x = 214,977.15 × 54,510.18
4. Step 4: Simplify right side
   143,255.94x = 11,718,443,142.39
5. Step 5: Solve for x
   x = 11,718,443,142.39/143,255.94
6. Step 6: Final answer
   x = 81,800.75