Finding the Fourth Proportional to 142,134.82, 213,156.87 and 57,894.82

Step by Step Solution

1. Step 1: Write the proportion equation
   142,134.82 : 213,156.87 = 57,894.82 : x
2. Step 2: Convert to fraction form
   142,134.82/213,156.87 = 57,894.82/x
3. Step 3: Cross multiply
   142,134.82x = 213,156.87 × 57,894.82
4. Step 4: Simplify right side
   142,134.82x = 12,340,678,620.41
5. Step 5: Solve for x
   x = 12,340,678,620.41/142,134.82
6. Step 6: Final answer
   x = 86,823.75