Finding the Fourth Proportional to 13,764.72, 18,995.04 and 7,477.14

Step by Step Solution

1. Step 1: Write the proportion equation
   13,764.72 : 18,995.04 = 7,477.14 : x
2. Step 2: Convert to fraction form
   13,764.72/18,995.04 = 7,477.14/x
3. Step 3: Cross multiply
   13,764.72x = 18,995.04 × 7,477.14
4. Step 4: Simplify right side
   13,764.72x = 142,028,573.39
5. Step 5: Solve for x
   x = 142,028,573.39/13,764.72
6. Step 6: Final answer
   x = 10,318.30