Finding the Fourth Proportional to 13,395.84, 18,485.82 and 8,357.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,395.84 : 18,485.82 = 8,357.46 : x
2. Step 2: Convert to fraction form
   13,395.84/18,485.82 = 8,357.46/x
3. Step 3: Cross multiply
   13,395.84x = 18,485.82 × 8,357.46
4. Step 4: Simplify right side
   13,395.84x = 154,494,501.22
5. Step 5: Solve for x
   x = 154,494,501.22/13,395.84
6. Step 6: Final answer
   x = 11,533.02