Finding the Fourth Proportional to 143,504.84, 215,182.67 and 42,289.62

Step by Step Solution

1. Step 1: Write the proportion equation
   143,504.84 : 215,182.67 = 42,289.62 : x
2. Step 2: Convert to fraction form
   143,504.84/215,182.67 = 42,289.62/x
3. Step 3: Cross multiply
   143,504.84x = 215,182.67 × 42,289.62
4. Step 4: Simplify right side
   143,504.84x = 9,099,993,344.89
5. Step 5: Solve for x
   x = 9,099,993,344.89/143,504.84
6. Step 6: Final answer
   x = 63,412.45