Finding the Fourth Proportional to 132,488, 182,836.32 and 72,872

Step by Step Solution

1. Step 1: Write the proportion equation
   132,488 : 182,836.32 = 72,872 : x
2. Step 2: Convert to fraction form
   132,488/182,836.32 = 72,872/x
3. Step 3: Cross multiply
   132,488x = 182,836.32 × 72,872
4. Step 4: Simplify right side
   132,488x = 13,323,648,311.04
5. Step 5: Solve for x
   x = 13,323,648,311.04/132,488
6. Step 6: Final answer
   x = 100,564.94