Finding the Fourth Proportional to 105,062.16, 144,984.42 and 57,314.49

Step by Step Solution

1. Step 1: Write the proportion equation
   105,062.16 : 144,984.42 = 57,314.49 : x
2. Step 2: Convert to fraction form
   105,062.16/144,984.42 = 57,314.49/x
3. Step 3: Cross multiply
   105,062.16x = 144,984.42 × 57,314.49
4. Step 4: Simplify right side
   105,062.16x = 8,309,708,090.25
5. Step 5: Solve for x
   x = 8,309,708,090.25/105,062.16
6. Step 6: Final answer
   x = 79,093.25