Finding the Fourth Proportional to 105,036.77, 144,945.51 and 59,708.81

Step by Step Solution

1. Step 1: Write the proportion equation
   105,036.77 : 144,945.51 = 59,708.81 : x
2. Step 2: Convert to fraction form
   105,036.77/144,945.51 = 59,708.81/x
3. Step 3: Cross multiply
   105,036.77x = 144,945.51 × 59,708.81
4. Step 4: Simplify right side
   105,036.77x = 8,654,523,916.94
5. Step 5: Solve for x
   x = 8,654,523,916.94/105,036.77
6. Step 6: Final answer
   x = 82,395.18