Finding the Fourth Proportional to 63,031.38, 86,981.70 and 34,351.78

Step by Step Solution

1. Step 1: Write the proportion equation
   63,031.38 : 86,981.70 = 34,351.78 : x
2. Step 2: Convert to fraction form
   63,031.38/86,981.70 = 34,351.78/x
3. Step 3: Cross multiply
   63,031.38x = 86,981.70 × 34,351.78
4. Step 4: Simplify right side
   63,031.38x = 2,987,976,222.43
5. Step 5: Solve for x
   x = 2,987,976,222.43/63,031.38
6. Step 6: Final answer
   x = 47,404.58