Finding the Fourth Proportional to 13,834.01, 19,090.94 and 7,866.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,834.01 : 19,090.94 = 7,866.05 : x
2. Step 2: Convert to fraction form
   13,834.01/19,090.94 = 7,866.05/x
3. Step 3: Cross multiply
   13,834.01x = 19,090.94 × 7,866.05
4. Step 4: Simplify right side
   13,834.01x = 150,170,153.80
5. Step 5: Solve for x
   x = 150,170,153.80/13,834.01
6. Step 6: Final answer
   x = 10,855.15