Finding the Fourth Proportional to 105,933.40, 146,189.15 and 57,536.27

Step by Step Solution

1. Step 1: Write the proportion equation
   105,933.40 : 146,189.15 = 57,536.27 : x
2. Step 2: Convert to fraction form
   105,933.40/146,189.15 = 57,536.27/x
3. Step 3: Cross multiply
   105,933.40x = 146,189.15 × 57,536.27
4. Step 4: Simplify right side
   105,933.40x = 8,411,178,405.47
5. Step 5: Solve for x
   x = 8,411,178,405.47/105,933.40
6. Step 6: Final answer
   x = 79,400.63