Finding the Fourth Proportional to 12,378.02, 17,081.69 and 6,789.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,378.02 : 17,081.69 = 6,789.06 : x
2. Step 2: Convert to fraction form
   12,378.02/17,081.69 = 6,789.06/x
3. Step 3: Cross multiply
   12,378.02x = 17,081.69 × 6,789.06
4. Step 4: Simplify right side
   12,378.02x = 115,968,618.31
5. Step 5: Solve for x
   x = 115,968,618.31/12,378.02
6. Step 6: Final answer
   x = 9,368.92