Finding the Fourth Proportional to 12,389.51, 17,093.34 and 7,080.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,389.51 : 17,093.34 = 7,080.56 : x
2. Step 2: Convert to fraction form
   12,389.51/17,093.34 = 7,080.56/x
3. Step 3: Cross multiply
   12,389.51x = 17,093.34 × 7,080.56
4. Step 4: Simplify right side
   12,389.51x = 121,030,334.00
5. Step 5: Solve for x
   x = 121,030,334.00/12,389.51
6. Step 6: Final answer
   x = 9,768.78