Finding the Fourth Proportional to 132,570.19, 182,950.72 and 72,144.73

Step by Step Solution

1. Step 1: Write the proportion equation
   132,570.19 : 182,950.72 = 72,144.73 : x
2. Step 2: Convert to fraction form
   132,570.19/182,950.72 = 72,144.73/x
3. Step 3: Cross multiply
   132,570.19x = 182,950.72 × 72,144.73
4. Step 4: Simplify right side
   132,570.19x = 13,198,930,860.58
5. Step 5: Solve for x
   x = 13,198,930,860.58/132,570.19
6. Step 6: Final answer
   x = 99,561.83