Finding the Fourth Proportional to 8,667.81, 12,987.74 and 4,501.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,667.81 : 12,987.74 = 4,501.58 : x
2. Step 2: Convert to fraction form
   8,667.81/12,987.74 = 4,501.58/x
3. Step 3: Cross multiply
   8,667.81x = 12,987.74 × 4,501.58
4. Step 4: Simplify right side
   8,667.81x = 58,465,296.94
5. Step 5: Solve for x
   x = 58,465,296.94/8,667.81
6. Step 6: Final answer
   x = 6,745.11