Finding the Fourth Proportional to 143,632.99, 215,472.84 and 42,441.31

Step by Step Solution

1. Step 1: Write the proportion equation
   143,632.99 : 215,472.84 = 42,441.31 : x
2. Step 2: Convert to fraction form
   143,632.99/215,472.84 = 42,441.31/x
3. Step 3: Cross multiply
   143,632.99x = 215,472.84 × 42,441.31
4. Step 4: Simplify right side
   143,632.99x = 9,144,949,599.02
5. Step 5: Solve for x
   x = 9,144,949,599.02/143,632.99
6. Step 6: Final answer
   x = 63,668.87