Finding the Fourth Proportional to 116,958.17, 161,402.04 and 65,970.74

Step by Step Solution

1. Step 1: Write the proportion equation
   116,958.17 : 161,402.04 = 65,970.74 : x
2. Step 2: Convert to fraction form
   116,958.17/161,402.04 = 65,970.74/x
3. Step 3: Cross multiply
   116,958.17x = 161,402.04 × 65,970.74
4. Step 4: Simplify right side
   116,958.17x = 10,647,812,419.81
5. Step 5: Solve for x
   x = 10,647,812,419.81/116,958.17
6. Step 6: Final answer
   x = 91,039.49