Finding the Fourth Proportional to 142,150.17, 213,212.90 and 57,919.22

Step by Step Solution

1. Step 1: Write the proportion equation
   142,150.17 : 213,212.90 = 57,919.22 : x
2. Step 2: Convert to fraction form
   142,150.17/213,212.90 = 57,919.22/x
3. Step 3: Cross multiply
   142,150.17x = 213,212.90 × 57,919.22
4. Step 4: Simplify right side
   142,150.17x = 12,349,123,506.28
5. Step 5: Solve for x
   x = 12,349,123,506.28/142,150.17
6. Step 6: Final answer
   x = 86,873.79