Finding the Fourth Proportional to 12,774.53, 17,628.73 and 7,109.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,774.53 : 17,628.73 = 7,109.19 : x
2. Step 2: Convert to fraction form
   12,774.53/17,628.73 = 7,109.19/x
3. Step 3: Cross multiply
   12,774.53x = 17,628.73 × 7,109.19
4. Step 4: Simplify right side
   12,774.53x = 125,325,867.34
5. Step 5: Solve for x
   x = 125,325,867.34/12,774.53
6. Step 6: Final answer
   x = 9,810.60