Finding the Fourth Proportional to 11,627.16, 17,438.87 and 3,191.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,627.16 : 17,438.87 = 3,191.69 : x
2. Step 2: Convert to fraction form
   11,627.16/17,438.87 = 3,191.69/x
3. Step 3: Cross multiply
   11,627.16x = 17,438.87 × 3,191.69
4. Step 4: Simplify right side
   11,627.16x = 55,659,451.03
5. Step 5: Solve for x
   x = 55,659,451.03/11,627.16
6. Step 6: Final answer
   x = 4,787.02