Finding the Fourth Proportional to 12,719.22, 17,553.42 and 7,054.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,719.22 : 17,553.42 = 7,054.51 : x
2. Step 2: Convert to fraction form
   12,719.22/17,553.42 = 7,054.51/x
3. Step 3: Cross multiply
   12,719.22x = 17,553.42 × 7,054.51
4. Step 4: Simplify right side
   12,719.22x = 123,830,765.95
5. Step 5: Solve for x
   x = 123,830,765.95/12,719.22
6. Step 6: Final answer
   x = 9,735.72