Finding the Fourth Proportional to 63,711.30, 87,933.78 and 42,201.30

Step by Step Solution

1. Step 1: Write the proportion equation
   63,711.30 : 87,933.78 = 42,201.30 : x
2. Step 2: Convert to fraction form
   63,711.30/87,933.78 = 42,201.30/x
3. Step 3: Cross multiply
   63,711.30x = 87,933.78 × 42,201.30
4. Step 4: Simplify right side
   63,711.30x = 3,710,919,829.91
5. Step 5: Solve for x
   x = 3,710,919,829.91/63,711.30
6. Step 6: Final answer
   x = 58,245.87