Finding the Fourth Proportional to 14,144.34, 19,518.04 and 7,770.78

Step by Step Solution

1. Step 1: Write the proportion equation
   14,144.34 : 19,518.04 = 7,770.78 : x
2. Step 2: Convert to fraction form
   14,144.34/19,518.04 = 7,770.78/x
3. Step 3: Cross multiply
   14,144.34x = 19,518.04 × 7,770.78
4. Step 4: Simplify right side
   14,144.34x = 151,670,394.87
5. Step 5: Solve for x
   x = 151,670,394.87/14,144.34
6. Step 6: Final answer
   x = 10,723.05