Finding the Fourth Proportional to 124,142.15, 186,067.42 and 57,441.40

Step by Step Solution

1. Step 1: Write the proportion equation
   124,142.15 : 186,067.42 = 57,441.40 : x
2. Step 2: Convert to fraction form
   124,142.15/186,067.42 = 57,441.40/x
3. Step 3: Cross multiply
   124,142.15x = 186,067.42 × 57,441.40
4. Step 4: Simplify right side
   124,142.15x = 10,687,973,099.19
5. Step 5: Solve for x
   x = 10,687,973,099.19/124,142.15
6. Step 6: Final answer
   x = 86,094.64