Finding the Fourth Proportional to 141,342.89, 211,931.31 and 57,105.73

Step by Step Solution

1. Step 1: Write the proportion equation
   141,342.89 : 211,931.31 = 57,105.73 : x
2. Step 2: Convert to fraction form
   141,342.89/211,931.31 = 57,105.73/x
3. Step 3: Cross multiply
   141,342.89x = 211,931.31 × 57,105.73
4. Step 4: Simplify right side
   141,342.89x = 12,102,492,167.41
5. Step 5: Solve for x
   x = 12,102,492,167.41/141,342.89
6. Step 6: Final answer
   x = 85,625.05