Finding the Fourth Proportional to 142,816.50, 197,004.69 and 89,075.70

Step by Step Solution

1. Step 1: Write the proportion equation
   142,816.50 : 197,004.69 = 89,075.70 : x
2. Step 2: Convert to fraction form
   142,816.50/197,004.69 = 89,075.70/x
3. Step 3: Cross multiply
   142,816.50x = 197,004.69 × 89,075.70
4. Step 4: Simplify right side
   142,816.50x = 17,548,330,665.03
5. Step 5: Solve for x
   x = 17,548,330,665.03/142,816.50
6. Step 6: Final answer
   x = 122,873.27