Finding the Fourth Proportional to 132,839.88, 183,315.39 and 72,411.71

Step by Step Solution

1. Step 1: Write the proportion equation
   132,839.88 : 183,315.39 = 72,411.71 : x
2. Step 2: Convert to fraction form
   132,839.88/183,315.39 = 72,411.71/x
3. Step 3: Cross multiply
   132,839.88x = 183,315.39 × 72,411.71
4. Step 4: Simplify right side
   132,839.88x = 13,274,179,942.64
5. Step 5: Solve for x
   x = 13,274,179,942.64/132,839.88
6. Step 6: Final answer
   x = 99,926.17