Finding the Fourth Proportional to 105,010.16, 144,917.52 and 57,266.12

Step by Step Solution

1. Step 1: Write the proportion equation
   105,010.16 : 144,917.52 = 57,266.12 : x
2. Step 2: Convert to fraction form
   105,010.16/144,917.52 = 57,266.12/x
3. Step 3: Cross multiply
   105,010.16x = 144,917.52 × 57,266.12
4. Step 4: Simplify right side
   105,010.16x = 8,298,864,090.42
5. Step 5: Solve for x
   x = 8,298,864,090.42/105,010.16
6. Step 6: Final answer
   x = 79,029.15