Finding the Fourth Proportional to 132,559.72, 182,929.70 and 72,131.56

Step by Step Solution

1. Step 1: Write the proportion equation
   132,559.72 : 182,929.70 = 72,131.56 : x
2. Step 2: Convert to fraction form
   132,559.72/182,929.70 = 72,131.56/x
3. Step 3: Cross multiply
   132,559.72x = 182,929.70 × 72,131.56
4. Step 4: Simplify right side
   132,559.72x = 13,195,004,631.33
5. Step 5: Solve for x
   x = 13,195,004,631.33/132,559.72
6. Step 6: Final answer
   x = 99,540.08