Finding the Fourth Proportional to 132,667.39, 183,078.63 and 72,236.94

Step by Step Solution

1. Step 1: Write the proportion equation
   132,667.39 : 183,078.63 = 72,236.94 : x
2. Step 2: Convert to fraction form
   132,667.39/183,078.63 = 72,236.94/x
3. Step 3: Cross multiply
   132,667.39x = 183,078.63 × 72,236.94
4. Step 4: Simplify right side
   132,667.39x = 13,225,040,010.59
5. Step 5: Solve for x
   x = 13,225,040,010.59/132,667.39
6. Step 6: Final answer
   x = 99,685.69