Finding the Fourth Proportional to 13,905.27, 19,187.42 and 7,936.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,905.27 : 19,187.42 = 7,936.56 : x
2. Step 2: Convert to fraction form
   13,905.27/19,187.42 = 7,936.56/x
3. Step 3: Cross multiply
   13,905.27x = 19,187.42 × 7,936.56
4. Step 4: Simplify right side
   13,905.27x = 152,282,070.39
5. Step 5: Solve for x
   x = 152,282,070.39/13,905.27
6. Step 6: Final answer
   x = 10,951.39