Finding the Fourth Proportional to 10,254.47, 14,136.73 and 7,739.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,254.47 : 14,136.73 = 7,739.42 : x
2. Step 2: Convert to fraction form
   10,254.47/14,136.73 = 7,739.42/x
3. Step 3: Cross multiply
   10,254.47x = 14,136.73 × 7,739.42
4. Step 4: Simplify right side
   10,254.47x = 109,410,000.86
5. Step 5: Solve for x
   x = 109,410,000.86/10,254.47
6. Step 6: Final answer
   x = 10,669.50