Finding the Fourth Proportional to 116,723.51, 161,076.69 and 65,736.38

Step by Step Solution

1. Step 1: Write the proportion equation
   116,723.51 : 161,076.69 = 65,736.38 : x
2. Step 2: Convert to fraction form
   116,723.51/161,076.69 = 65,736.38/x
3. Step 3: Cross multiply
   116,723.51x = 161,076.69 × 65,736.38
4. Step 4: Simplify right side
   116,723.51x = 10,588,598,502.98
5. Step 5: Solve for x
   x = 10,588,598,502.98/116,723.51
6. Step 6: Final answer
   x = 90,715.22