Finding the Fourth Proportional to 141,933.57, 212,900.39 and 57,739.53

Step by Step Solution

1. Step 1: Write the proportion equation
   141,933.57 : 212,900.39 = 57,739.53 : x
2. Step 2: Convert to fraction form
   141,933.57/212,900.39 = 57,739.53/x
3. Step 3: Cross multiply
   141,933.57x = 212,900.39 × 57,739.53
4. Step 4: Simplify right side
   141,933.57x = 12,292,768,166.72
5. Step 5: Solve for x
   x = 12,292,768,166.72/141,933.57
6. Step 6: Final answer
   x = 86,609.31