Finding the Fourth Proportional to 132,499.40, 182,916.73 and 89,705.04

Step by Step Solution

1. Step 1: Write the proportion equation
   132,499.40 : 182,916.73 = 89,705.04 : x
2. Step 2: Convert to fraction form
   132,499.40/182,916.73 = 89,705.04/x
3. Step 3: Cross multiply
   132,499.40x = 182,916.73 × 89,705.04
4. Step 4: Simplify right side
   132,499.40x = 16,408,552,007.51
5. Step 5: Solve for x
   x = 16,408,552,007.51/132,499.40
6. Step 6: Final answer
   x = 123,838.69