Finding the Fourth Proportional to 143,633.49, 215,473.59 and 42,441.81

Step by Step Solution

1. Step 1: Write the proportion equation
   143,633.49 : 215,473.59 = 42,441.81 : x
2. Step 2: Convert to fraction form
   143,633.49/215,473.59 = 42,441.81/x
3. Step 3: Cross multiply
   143,633.49x = 215,473.59 × 42,441.81
4. Step 4: Simplify right side
   143,633.49x = 9,145,089,166.80
5. Step 5: Solve for x
   x = 9,145,089,166.80/143,633.49
6. Step 6: Final answer
   x = 63,669.62