Finding the Fourth Proportional to 8,065.81, 11,134.56 and 5,381.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,065.81 : 11,134.56 = 5,381.49 : x
2. Step 2: Convert to fraction form
   8,065.81/11,134.56 = 5,381.49/x
3. Step 3: Cross multiply
   8,065.81x = 11,134.56 × 5,381.49
4. Step 4: Simplify right side
   8,065.81x = 59,920,523.29
5. Step 5: Solve for x
   x = 59,920,523.29/8,065.81
6. Step 6: Final answer
   x = 7,428.95