Finding the Fourth Proportional to 21,776.96, 30,055.56 and 12,343.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,776.96 : 30,055.56 = 12,343.52 : x
2. Step 2: Convert to fraction form
   21,776.96/30,055.56 = 12,343.52/x
3. Step 3: Cross multiply
   21,776.96x = 30,055.56 × 12,343.52
4. Step 4: Simplify right side
   21,776.96x = 370,991,405.97
5. Step 5: Solve for x
   x = 370,991,405.97/21,776.96
6. Step 6: Final answer
   x = 17,035.96