Finding the Fourth Proportional to 116,457.34, 160,716.83 and 65,486.12

Step by Step Solution

1. Step 1: Write the proportion equation
   116,457.34 : 160,716.83 = 65,486.12 : x
2. Step 2: Convert to fraction form
   116,457.34/160,716.83 = 65,486.12/x
3. Step 3: Cross multiply
   116,457.34x = 160,716.83 × 65,486.12
4. Step 4: Simplify right side
   116,457.34x = 10,524,720,484.38
5. Step 5: Solve for x
   x = 10,524,720,484.38/116,457.34
6. Step 6: Final answer
   x = 90,374.04