Finding the Fourth Proportional to 13,810.84, 19,066.02 and 9,358.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,810.84 : 19,066.02 = 9,358.12 : x
2. Step 2: Convert to fraction form
   13,810.84/19,066.02 = 9,358.12/x
3. Step 3: Cross multiply
   13,810.84x = 19,066.02 × 9,358.12
4. Step 4: Simplify right side
   13,810.84x = 178,422,103.08
5. Step 5: Solve for x
   x = 178,422,103.08/13,810.84
6. Step 6: Final answer
   x = 12,918.99