Finding the Fourth Proportional to 13,834.82, 19,090.72 and 7,866.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,834.82 : 19,090.72 = 7,866.16 : x
2. Step 2: Convert to fraction form
   13,834.82/19,090.72 = 7,866.16/x
3. Step 3: Cross multiply
   13,834.82x = 19,090.72 × 7,866.16
4. Step 4: Simplify right side
   13,834.82x = 150,170,658.04
5. Step 5: Solve for x
   x = 150,170,658.04/13,834.82
6. Step 6: Final answer
   x = 10,854.54