Finding the Fourth Proportional to 161,510.80, 222,882.69 and 89,890.84

Step by Step Solution

1. Step 1: Write the proportion equation
   161,510.80 : 222,882.69 = 89,890.84 : x
2. Step 2: Convert to fraction form
   161,510.80/222,882.69 = 89,890.84/x
3. Step 3: Cross multiply
   161,510.80x = 222,882.69 × 89,890.84
4. Step 4: Simplify right side
   161,510.80x = 20,035,112,225.56
5. Step 5: Solve for x
   x = 20,035,112,225.56/161,510.80
6. Step 6: Final answer
   x = 124,048.13