Finding the Fourth Proportional to 13,271.37, 18,314.78 and 7,303.35

Step by Step Solution

1. Step 1: Write the proportion equation
   13,271.37 : 18,314.78 = 7,303.35 : x
2. Step 2: Convert to fraction form
   13,271.37/18,314.78 = 7,303.35/x
3. Step 3: Cross multiply
   13,271.37x = 18,314.78 × 7,303.35
4. Step 4: Simplify right side
   13,271.37x = 133,759,212.00
5. Step 5: Solve for x
   x = 133,759,212.00/13,271.37
6. Step 6: Final answer
   x = 10,078.78