Finding the Fourth Proportional to 63,585, 87,747.30 and 38,434.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,585 : 87,747.30 = 38,434.50 : x
2. Step 2: Convert to fraction form
   63,585/87,747.30 = 38,434.50/x
3. Step 3: Cross multiply
   63,585x = 87,747.30 × 38,434.50
4. Step 4: Simplify right side
   63,585x = 3,372,523,601.85
5. Step 5: Solve for x
   x = 3,372,523,601.85/63,585
6. Step 6: Final answer
   x = 53,039.61