Finding the Fourth Proportional to 5,199.89, 7,176.24 and 2,961.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,199.89 : 7,176.24 = 2,961.86 : x
2. Step 2: Convert to fraction form
   5,199.89/7,176.24 = 2,961.86/x
3. Step 3: Cross multiply
   5,199.89x = 7,176.24 × 2,961.86
4. Step 4: Simplify right side
   5,199.89x = 21,254,982.33
5. Step 5: Solve for x
   x = 21,254,982.33/5,199.89
6. Step 6: Final answer
   x = 4,087.59