Finding the Fourth Proportional to 5,072.96, 7,590.72 and 3,072.81

Step by Step Solution

1. Step 1: Write the proportion equation
   5,072.96 : 7,590.72 = 3,072.81 : x
2. Step 2: Convert to fraction form
   5,072.96/7,590.72 = 3,072.81/x
3. Step 3: Cross multiply
   5,072.96x = 7,590.72 × 3,072.81
4. Step 4: Simplify right side
   5,072.96x = 23,324,850.32
5. Step 5: Solve for x
   x = 23,324,850.32/5,072.96
6. Step 6: Final answer
   x = 4,597.88