Finding the Fourth Proportional to 142,058.42, 213,122.33 and 47,288.42

Step by Step Solution

1. Step 1: Write the proportion equation
   142,058.42 : 213,122.33 = 47,288.42 : x
2. Step 2: Convert to fraction form
   142,058.42/213,122.33 = 47,288.42/x
3. Step 3: Cross multiply
   142,058.42x = 213,122.33 × 47,288.42
4. Step 4: Simplify right side
   142,058.42x = 10,078,218,252.42
5. Step 5: Solve for x
   x = 10,078,218,252.42/142,058.42
6. Step 6: Final answer
   x = 70,944.18