Finding the Fourth Proportional to 12,719.40, 17,553.80 and 7,055.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,719.40 : 17,553.80 = 7,055.92 : x
2. Step 2: Convert to fraction form
   12,719.40/17,553.80 = 7,055.92/x
3. Step 3: Cross multiply
   12,719.40x = 17,553.80 × 7,055.92
4. Step 4: Simplify right side
   12,719.40x = 123,858,208.50
5. Step 5: Solve for x
   x = 123,858,208.50/12,719.40
6. Step 6: Final answer
   x = 9,737.74