Finding the Fourth Proportional to 5,369.91, 8,047.58 and 3,988.46

Step by Step Solution

1. Step 1: Write the proportion equation
   5,369.91 : 8,047.58 = 3,988.46 : x
2. Step 2: Convert to fraction form
   5,369.91/8,047.58 = 3,988.46/x
3. Step 3: Cross multiply
   5,369.91x = 8,047.58 × 3,988.46
4. Step 4: Simplify right side
   5,369.91x = 32,097,390.75
5. Step 5: Solve for x
   x = 32,097,390.75/5,369.91
6. Step 6: Final answer
   x = 5,977.27