Finding the Fourth Proportional to 161,921.71, 223,452.17 and 89,322.94

Step by Step Solution

1. Step 1: Write the proportion equation
   161,921.71 : 223,452.17 = 89,322.94 : x
2. Step 2: Convert to fraction form
   161,921.71/223,452.17 = 89,322.94/x
3. Step 3: Cross multiply
   161,921.71x = 223,452.17 × 89,322.94
4. Step 4: Simplify right side
   161,921.71x = 19,959,404,773.78
5. Step 5: Solve for x
   x = 19,959,404,773.78/161,921.71
6. Step 6: Final answer
   x = 123,265.77