Finding the Fourth Proportional to 14,101.94, 19,460.42 and 7,728.46

Step by Step Solution

1. Step 1: Write the proportion equation
   14,101.94 : 19,460.42 = 7,728.46 : x
2. Step 2: Convert to fraction form
   14,101.94/19,460.42 = 7,728.46/x
3. Step 3: Cross multiply
   14,101.94x = 19,460.42 × 7,728.46
4. Step 4: Simplify right side
   14,101.94x = 150,399,077.55
5. Step 5: Solve for x
   x = 150,399,077.55/14,101.94
6. Step 6: Final answer
   x = 10,665.13