Finding the Fourth Proportional to 23,730.94, 32,747.88 and 13,120.48

Step by Step Solution

1. Step 1: Write the proportion equation
   23,730.94 : 32,747.88 = 13,120.48 : x
2. Step 2: Convert to fraction form
   23,730.94/32,747.88 = 13,120.48/x
3. Step 3: Cross multiply
   23,730.94x = 32,747.88 × 13,120.48
4. Step 4: Simplify right side
   23,730.94x = 429,667,904.58
5. Step 5: Solve for x
   x = 429,667,904.58/23,730.94
6. Step 6: Final answer
   x = 18,105.81