Finding the Fourth Proportional to 12,994.81, 19,487.39 and 4,672.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,994.81 : 19,487.39 = 4,672.55 : x
2. Step 2: Convert to fraction form
   12,994.81/19,487.39 = 4,672.55/x
3. Step 3: Cross multiply
   12,994.81x = 19,487.39 × 4,672.55
4. Step 4: Simplify right side
   12,994.81x = 91,055,829.50
5. Step 5: Solve for x
   x = 91,055,829.50/12,994.81
6. Step 6: Final answer
   x = 7,007.09