Finding the Fourth Proportional to 12,955.50, 19,436.49 and 5,556.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,955.50 : 19,436.49 = 5,556.30 : x
2. Step 2: Convert to fraction form
   12,955.50/19,436.49 = 5,556.30/x
3. Step 3: Cross multiply
   12,955.50x = 19,436.49 × 5,556.30
4. Step 4: Simplify right side
   12,955.50x = 107,994,969.39
5. Step 5: Solve for x
   x = 107,994,969.39/12,955.50
6. Step 6: Final answer
   x = 8,335.84