Finding the Fourth Proportional to 12,773.88, 17,627.94 and 7,109.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,773.88 : 17,627.94 = 7,109.28 : x
2. Step 2: Convert to fraction form
   12,773.88/17,627.94 = 7,109.28/x
3. Step 3: Cross multiply
   12,773.88x = 17,627.94 × 7,109.28
4. Step 4: Simplify right side
   12,773.88x = 125,321,961.28
5. Step 5: Solve for x
   x = 125,321,961.28/12,773.88
6. Step 6: Final answer
   x = 9,810.80