Finding the Fourth Proportional to 13,834.50, 19,091.62 and 7,866.54

Step by Step Solution

1. Step 1: Write the proportion equation
   13,834.50 : 19,091.62 = 7,866.54 : x
2. Step 2: Convert to fraction form
   13,834.50/19,091.62 = 7,866.54/x
3. Step 3: Cross multiply
   13,834.50x = 19,091.62 × 7,866.54
4. Step 4: Simplify right side
   13,834.50x = 150,184,992.39
5. Step 5: Solve for x
   x = 150,184,992.39/13,834.50
6. Step 6: Final answer
   x = 10,855.83