Finding the Fourth Proportional to 142,147.62, 213,222.12 and 57,908.59

Step by Step Solution

1. Step 1: Write the proportion equation
   142,147.62 : 213,222.12 = 57,908.59 : x
2. Step 2: Convert to fraction form
   142,147.62/213,222.12 = 57,908.59/x
3. Step 3: Cross multiply
   142,147.62x = 213,222.12 × 57,908.59
4. Step 4: Simplify right side
   142,147.62x = 12,347,392,326.01
5. Step 5: Solve for x
   x = 12,347,392,326.01/142,147.62
6. Step 6: Final answer
   x = 86,863.17