Finding the Fourth Proportional to 116,984.42, 161,438.03 and 65,997.15

Step by Step Solution

1. Step 1: Write the proportion equation
   116,984.42 : 161,438.03 = 65,997.15 : x
2. Step 2: Convert to fraction form
   116,984.42/161,438.03 = 65,997.15/x
3. Step 3: Cross multiply
   116,984.42x = 161,438.03 × 65,997.15
4. Step 4: Simplify right side
   116,984.42x = 10,654,450,834.28
5. Step 5: Solve for x
   x = 10,654,450,834.28/116,984.42
6. Step 6: Final answer
   x = 91,075.81