Finding the Fourth Proportional to 5,381.12, 8,073.72 and 2,607.59

Step by Step Solution

1. Step 1: Write the proportion equation
   5,381.12 : 8,073.72 = 2,607.59 : x
2. Step 2: Convert to fraction form
   5,381.12/8,073.72 = 2,607.59/x
3. Step 3: Cross multiply
   5,381.12x = 8,073.72 × 2,607.59
4. Step 4: Simplify right side
   5,381.12x = 21,052,951.53
5. Step 5: Solve for x
   x = 21,052,951.53/5,381.12
6. Step 6: Final answer
   x = 3,912.37