Finding the Fourth Proportional to 5,851.89, 8,702.60 and 5,667.35

Step by Step Solution

1. Step 1: Write the proportion equation
   5,851.89 : 8,702.60 = 5,667.35 : x
2. Step 2: Convert to fraction form
   5,851.89/8,702.60 = 5,667.35/x
3. Step 3: Cross multiply
   5,851.89x = 8,702.60 × 5,667.35
4. Step 4: Simplify right side
   5,851.89x = 49,320,608.26
5. Step 5: Solve for x
   x = 49,320,608.26/5,851.89
6. Step 6: Final answer
   x = 8,428.15