Finding the Fourth Proportional to 3,667.75, 5,491.13 and 3,434.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.75 : 5,491.13 = 3,434.98 : x
2. Step 2: Convert to fraction form
   3,667.75/5,491.13 = 3,434.98/x
3. Step 3: Cross multiply
   3,667.75x = 5,491.13 × 3,434.98
4. Step 4: Simplify right side
   3,667.75x = 18,861,916.59
5. Step 5: Solve for x
   x = 18,861,916.59/3,667.75
6. Step 6: Final answer
   x = 5,142.64