Finding the Fourth Proportional to 141,908.82, 212,849.40 and 57,674.03

Step by Step Solution

1. Step 1: Write the proportion equation
   141,908.82 : 212,849.40 = 57,674.03 : x
2. Step 2: Convert to fraction form
   141,908.82/212,849.40 = 57,674.03/x
3. Step 3: Cross multiply
   141,908.82x = 212,849.40 × 57,674.03
4. Step 4: Simplify right side
   141,908.82x = 12,275,883,030.39
5. Step 5: Solve for x
   x = 12,275,883,030.39/141,908.82
6. Step 6: Final answer
   x = 86,505.43