Finding the Fourth Proportional to 142,472.07, 213,709.02 and 42,622.77

Step by Step Solution

1. Step 1: Write the proportion equation
   142,472.07 : 213,709.02 = 42,622.77 : x
2. Step 2: Convert to fraction form
   142,472.07/213,709.02 = 42,622.77/x
3. Step 3: Cross multiply
   142,472.07x = 213,709.02 × 42,622.77
4. Step 4: Simplify right side
   142,472.07x = 9,108,870,406.39
5. Step 5: Solve for x
   x = 9,108,870,406.39/142,472.07
6. Step 6: Final answer
   x = 63,934.43