Finding the Fourth Proportional to 5,491.42, 8,189.45 and 5,300.08

Step by Step Solution

1. Step 1: Write the proportion equation
   5,491.42 : 8,189.45 = 5,300.08 : x
2. Step 2: Convert to fraction form
   5,491.42/8,189.45 = 5,300.08/x
3. Step 3: Cross multiply
   5,491.42x = 8,189.45 × 5,300.08
4. Step 4: Simplify right side
   5,491.42x = 43,404,740.16
5. Step 5: Solve for x
   x = 43,404,740.16/5,491.42
6. Step 6: Final answer
   x = 7,904.10