Finding the Fourth Proportional to 161,651.29, 223,096.22 and 89,061.60

Step by Step Solution

1. Step 1: Write the proportion equation
   161,651.29 : 223,096.22 = 89,061.60 : x
2. Step 2: Convert to fraction form
   161,651.29/223,096.22 = 89,061.60/x
3. Step 3: Cross multiply
   161,651.29x = 223,096.22 × 89,061.60
4. Step 4: Simplify right side
   161,651.29x = 19,869,306,307.15
5. Step 5: Solve for x
   x = 19,869,306,307.15/161,651.29
6. Step 6: Final answer
   x = 122,914.62