Finding the Fourth Proportional to 132,205.50, 182,443.59 and 72,589.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,205.50 : 182,443.59 = 72,589.50 : x
2. Step 2: Convert to fraction form
   132,205.50/182,443.59 = 72,589.50/x
3. Step 3: Cross multiply
   132,205.50x = 182,443.59 × 72,589.50
4. Step 4: Simplify right side
   132,205.50x = 13,243,488,976.31
5. Step 5: Solve for x
   x = 13,243,488,976.31/132,205.50
6. Step 6: Final answer
   x = 100,173.51