Finding the Fourth Proportional to 8,667.79, 13,003.30 and 3,474.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,667.79 : 13,003.30 = 3,474.07 : x
2. Step 2: Convert to fraction form
   8,667.79/13,003.30 = 3,474.07/x
3. Step 3: Cross multiply
   8,667.79x = 13,003.30 × 3,474.07
4. Step 4: Simplify right side
   8,667.79x = 45,174,374.43
5. Step 5: Solve for x
   x = 45,174,374.43/8,667.79
6. Step 6: Final answer
   x = 5,211.75