Finding the Fourth Proportional to 144,499.01, 216,766.97 and 55,777.88

Step by Step Solution

1. Step 1: Write the proportion equation
   144,499.01 : 216,766.97 = 55,777.88 : x
2. Step 2: Convert to fraction form
   144,499.01/216,766.97 = 55,777.88/x
3. Step 3: Cross multiply
   144,499.01x = 216,766.97 × 55,777.88
4. Step 4: Simplify right side
   144,499.01x = 12,090,802,512.82
5. Step 5: Solve for x
   x = 12,090,802,512.82/144,499.01
6. Step 6: Final answer
   x = 83,673.95