Finding the Fourth Proportional to 14,114.69, 19,478.53 and 7,740.87

Step by Step Solution

1. Step 1: Write the proportion equation
   14,114.69 : 19,478.53 = 7,740.87 : x
2. Step 2: Convert to fraction form
   14,114.69/19,478.53 = 7,740.87/x
3. Step 3: Cross multiply
   14,114.69x = 19,478.53 × 7,740.87
4. Step 4: Simplify right side
   14,114.69x = 150,780,768.52
5. Step 5: Solve for x
   x = 150,780,768.52/14,114.69
6. Step 6: Final answer
   x = 10,682.54