Finding the Fourth Proportional to 116,633.94, 161,032.32 and 89,728.98

Step by Step Solution

1. Step 1: Write the proportion equation
   116,633.94 : 161,032.32 = 89,728.98 : x
2. Step 2: Convert to fraction form
   116,633.94/161,032.32 = 89,728.98/x
3. Step 3: Cross multiply
   116,633.94x = 161,032.32 × 89,728.98
4. Step 4: Simplify right side
   116,633.94x = 14,449,265,820.63
5. Step 5: Solve for x
   x = 14,449,265,820.63/116,633.94
6. Step 6: Final answer
   x = 123,885.60