Finding the Fourth Proportional to 63,530.72, 87,634.27 and 42,020.97

Step by Step Solution

1. Step 1: Write the proportion equation
   63,530.72 : 87,634.27 = 42,020.97 : x
2. Step 2: Convert to fraction form
   63,530.72/87,634.27 = 42,020.97/x
3. Step 3: Cross multiply
   63,530.72x = 87,634.27 × 42,020.97
4. Step 4: Simplify right side
   63,530.72x = 3,682,477,030.64
5. Step 5: Solve for x
   x = 3,682,477,030.64/63,530.72
6. Step 6: Final answer
   x = 57,963.72