Finding the Fourth Proportional to 132,434.82, 182,759.90 and 72,005.31

Step by Step Solution

1. Step 1: Write the proportion equation
   132,434.82 : 182,759.90 = 72,005.31 : x
2. Step 2: Convert to fraction form
   132,434.82/182,759.90 = 72,005.31/x
3. Step 3: Cross multiply
   132,434.82x = 182,759.90 × 72,005.31
4. Step 4: Simplify right side
   132,434.82x = 13,159,682,895.04
5. Step 5: Solve for x
   x = 13,159,682,895.04/132,434.82
6. Step 6: Final answer
   x = 99,367.24