Finding the Fourth Proportional to 63,290.82, 87,321.60 and 42,073.68

Step by Step Solution

1. Step 1: Write the proportion equation
   63,290.82 : 87,321.60 = 42,073.68 : x
2. Step 2: Convert to fraction form
   63,290.82/87,321.60 = 42,073.68/x
3. Step 3: Cross multiply
   63,290.82x = 87,321.60 × 42,073.68
4. Step 4: Simplify right side
   63,290.82x = 3,673,941,055.49
5. Step 5: Solve for x
   x = 3,673,941,055.49/63,290.82
6. Step 6: Final answer
   x = 58,048.56