Finding the Fourth Proportional to 142,050.52, 213,087.31 and 42,210.81

Step by Step Solution

1. Step 1: Write the proportion equation
   142,050.52 : 213,087.31 = 42,210.81 : x
2. Step 2: Convert to fraction form
   142,050.52/213,087.31 = 42,210.81/x
3. Step 3: Cross multiply
   142,050.52x = 213,087.31 × 42,210.81
4. Step 4: Simplify right side
   142,050.52x = 8,994,587,750.98
5. Step 5: Solve for x
   x = 8,994,587,750.98/142,050.52
6. Step 6: Final answer
   x = 63,319.64