Finding the Fourth Proportional to 13,858.37, 19,119.77 and 7,888.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,858.37 : 19,119.77 = 7,888.52 : x
2. Step 2: Convert to fraction form
   13,858.37/19,119.77 = 7,888.52/x
3. Step 3: Cross multiply
   13,858.37x = 19,119.77 × 7,888.52
4. Step 4: Simplify right side
   13,858.37x = 150,826,553.00
5. Step 5: Solve for x
   x = 150,826,553.00/13,858.37
6. Step 6: Final answer
   x = 10,883.43