Finding the Fourth Proportional to 142,606.17, 213,922.22 and 42,762.33

Step by Step Solution

1. Step 1: Write the proportion equation
   142,606.17 : 213,922.22 = 42,762.33 : x
2. Step 2: Convert to fraction form
   142,606.17/213,922.22 = 42,762.33/x
3. Step 3: Cross multiply
   142,606.17x = 213,922.22 × 42,762.33
4. Step 4: Simplify right side
   142,606.17x = 9,147,812,352.16
5. Step 5: Solve for x
   x = 9,147,812,352.16/142,606.17
6. Step 6: Final answer
   x = 64,147.38