Finding the Fourth Proportional to 144,217.33, 216,323.60 and 55,490.06

Step by Step Solution

1. Step 1: Write the proportion equation
   144,217.33 : 216,323.60 = 55,490.06 : x
2. Step 2: Convert to fraction form
   144,217.33/216,323.60 = 55,490.06/x
3. Step 3: Cross multiply
   144,217.33x = 216,323.60 × 55,490.06
4. Step 4: Simplify right side
   144,217.33x = 12,003,809,806.77
5. Step 5: Solve for x
   x = 12,003,809,806.77/144,217.33
6. Step 6: Final answer
   x = 83,234.17