Finding the Fourth Proportional to 9,847.89, 14,778 and 5,104.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,847.89 : 14,778 = 5,104.53 : x
2. Step 2: Convert to fraction form
   9,847.89/14,778 = 5,104.53/x
3. Step 3: Cross multiply
   9,847.89x = 14,778 × 5,104.53
4. Step 4: Simplify right side
   9,847.89x = 75,434,744.34
5. Step 5: Solve for x
   x = 75,434,744.34/9,847.89
6. Step 6: Final answer
   x = 7,659.99