Finding the Fourth Proportional to 18,428.84, 27,626.90 and 7,181.58

Step by Step Solution

1. Step 1: Write the proportion equation
   18,428.84 : 27,626.90 = 7,181.58 : x
2. Step 2: Convert to fraction form
   18,428.84/27,626.90 = 7,181.58/x
3. Step 3: Cross multiply
   18,428.84x = 27,626.90 × 7,181.58
4. Step 4: Simplify right side
   18,428.84x = 198,404,756.59
5. Step 5: Solve for x
   x = 198,404,756.59/18,428.84
6. Step 6: Final answer
   x = 10,765.99