Finding the Fourth Proportional to 144,087.27, 216,141.27 and 55,340.76

Step by Step Solution

1. Step 1: Write the proportion equation
   144,087.27 : 216,141.27 = 55,340.76 : x
2. Step 2: Convert to fraction form
   144,087.27/216,141.27 = 55,340.76/x
3. Step 3: Cross multiply
   144,087.27x = 216,141.27 × 55,340.76
4. Step 4: Simplify right side
   144,087.27x = 11,961,422,149.17
5. Step 5: Solve for x
   x = 11,961,422,149.17/144,087.27
6. Step 6: Final answer
   x = 83,015.12