Finding the Fourth Proportional to 10,078.35, 13,894.50 and 8,503.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,078.35 : 13,894.50 = 8,503.71 : x
2. Step 2: Convert to fraction form
   10,078.35/13,894.50 = 8,503.71/x
3. Step 3: Cross multiply
   10,078.35x = 13,894.50 × 8,503.71
4. Step 4: Simplify right side
   10,078.35x = 118,154,798.60
5. Step 5: Solve for x
   x = 118,154,798.60/10,078.35
6. Step 6: Final answer
   x = 11,723.63