Finding the Fourth Proportional to 142,106.33, 212,974.37 and 57,767.97

Step by Step Solution

1. Step 1: Write the proportion equation
   142,106.33 : 212,974.37 = 57,767.97 : x
2. Step 2: Convert to fraction form
   142,106.33/212,974.37 = 57,767.97/x
3. Step 3: Cross multiply
   142,106.33x = 212,974.37 × 57,767.97
4. Step 4: Simplify right side
   142,106.33x = 12,303,097,960.00
5. Step 5: Solve for x
   x = 12,303,097,960.00/142,106.33
6. Step 6: Final answer
   x = 86,576.71