Finding the Fourth Proportional to 72,131.34, 108,188.64 and 19,544.79

Step by Step Solution

1. Step 1: Write the proportion equation
   72,131.34 : 108,188.64 = 19,544.79 : x
2. Step 2: Convert to fraction form
   72,131.34/108,188.64 = 19,544.79/x
3. Step 3: Cross multiply
   72,131.34x = 108,188.64 × 19,544.79
4. Step 4: Simplify right side
   72,131.34x = 2,114,524,249.19
5. Step 5: Solve for x
   x = 2,114,524,249.19/72,131.34
6. Step 6: Final answer
   x = 29,314.92