Finding the Fourth Proportional to 143,624.05, 215,464.43 and 42,423.82

Step by Step Solution

1. Step 1: Write the proportion equation
   143,624.05 : 215,464.43 = 42,423.82 : x
2. Step 2: Convert to fraction form
   143,624.05/215,464.43 = 42,423.82/x
3. Step 3: Cross multiply
   143,624.05x = 215,464.43 × 42,423.82
4. Step 4: Simplify right side
   143,624.05x = 9,140,823,762.12
5. Step 5: Solve for x
   x = 9,140,823,762.12/143,624.05
6. Step 6: Final answer
   x = 63,644.10