Finding the Fourth Proportional to 116,637.57, 161,037.32 and 89,732.61

Step by Step Solution

1. Step 1: Write the proportion equation
   116,637.57 : 161,037.32 = 89,732.61 : x
2. Step 2: Convert to fraction form
   116,637.57/161,037.32 = 89,732.61/x
3. Step 3: Cross multiply
   116,637.57x = 161,037.32 × 89,732.61
4. Step 4: Simplify right side
   116,637.57x = 14,450,298,582.34
5. Step 5: Solve for x
   x = 14,450,298,582.34/116,637.57
6. Step 6: Final answer
   x = 123,890.60