Finding the Fourth Proportional to 63,289.82, 87,320.22 and 42,072.68

Step by Step Solution

1. Step 1: Write the proportion equation
   63,289.82 : 87,320.22 = 42,072.68 : x
2. Step 2: Convert to fraction form
   63,289.82/87,320.22 = 42,072.68/x
3. Step 3: Cross multiply
   63,289.82x = 87,320.22 × 42,072.68
4. Step 4: Simplify right side
   63,289.82x = 3,673,795,673.59
5. Step 5: Solve for x
   x = 3,673,795,673.59/63,289.82
6. Step 6: Final answer
   x = 58,047.18