Finding the Fourth Proportional to 13,451.94, 20,180.61 and 4,684.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,451.94 : 20,180.61 = 4,684.50 : x
2. Step 2: Convert to fraction form
   13,451.94/20,180.61 = 4,684.50/x
3. Step 3: Cross multiply
   13,451.94x = 20,180.61 × 4,684.50
4. Step 4: Simplify right side
   13,451.94x = 94,536,067.55
5. Step 5: Solve for x
   x = 94,536,067.55/13,451.94
6. Step 6: Final answer
   x = 7,027.69