Finding the Fourth Proportional to 13,767.72, 18,998.82 and 7,800.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,767.72 : 18,998.82 = 7,800.27 : x
2. Step 2: Convert to fraction form
   13,767.72/18,998.82 = 7,800.27/x
3. Step 3: Cross multiply
   13,767.72x = 18,998.82 × 7,800.27
4. Step 4: Simplify right side
   13,767.72x = 148,195,925.68
5. Step 5: Solve for x
   x = 148,195,925.68/13,767.72
6. Step 6: Final answer
   x = 10,764.01