Finding the Fourth Proportional to 5,817.27, 8,030.80 and 3,938.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,817.27 : 8,030.80 = 3,938.78 : x
2. Step 2: Convert to fraction form
   5,817.27/8,030.80 = 3,938.78/x
3. Step 3: Cross multiply
   5,817.27x = 8,030.80 × 3,938.78
4. Step 4: Simplify right side
   5,817.27x = 31,631,554.42
5. Step 5: Solve for x
   x = 31,631,554.42/5,817.27
6. Step 6: Final answer
   x = 5,437.53