Finding the Fourth Proportional to 63,298.30, 87,351.50 and 36,431

Step by Step Solution

1. Step 1: Write the proportion equation
   63,298.30 : 87,351.50 = 36,431 : x
2. Step 2: Convert to fraction form
   63,298.30/87,351.50 = 36,431/x
3. Step 3: Cross multiply
   63,298.30x = 87,351.50 × 36,431
4. Step 4: Simplify right side
   63,298.30x = 3,182,302,496.50
5. Step 5: Solve for x
   x = 3,182,302,496.50/63,298.30
6. Step 6: Final answer
   x = 50,274.69