Finding the Fourth Proportional to 11,667.60, 17,504.01 and 4,271.91

Step by Step Solution

1. Step 1: Write the proportion equation
   11,667.60 : 17,504.01 = 4,271.91 : x
2. Step 2: Convert to fraction form
   11,667.60/17,504.01 = 4,271.91/x
3. Step 3: Cross multiply
   11,667.60x = 17,504.01 × 4,271.91
4. Step 4: Simplify right side
   11,667.60x = 74,775,555.36
5. Step 5: Solve for x
   x = 74,775,555.36/11,667.60
6. Step 6: Final answer
   x = 6,408.82