Finding the Fourth Proportional to 105,032.56, 144,941.52 and 57,286.84

Step by Step Solution

1. Step 1: Write the proportion equation
   105,032.56 : 144,941.52 = 57,286.84 : x
2. Step 2: Convert to fraction form
   105,032.56/144,941.52 = 57,286.84/x
3. Step 3: Cross multiply
   105,032.56x = 144,941.52 × 57,286.84
4. Step 4: Simplify right side
   105,032.56x = 8,303,241,665.60
5. Step 5: Solve for x
   x = 8,303,241,665.60/105,032.56
6. Step 6: Final answer
   x = 79,053.98