Finding the Fourth Proportional to 142,111.24, 213,116.82 and 47,315.68

Step by Step Solution

1. Step 1: Write the proportion equation
   142,111.24 : 213,116.82 = 47,315.68 : x
2. Step 2: Convert to fraction form
   142,111.24/213,116.82 = 47,315.68/x
3. Step 3: Cross multiply
   142,111.24x = 213,116.82 × 47,315.68
4. Step 4: Simplify right side
   142,111.24x = 10,083,767,257.74
5. Step 5: Solve for x
   x = 10,083,767,257.74/142,111.24
6. Step 6: Final answer
   x = 70,956.86