Finding the Fourth Proportional to 161,499.58, 222,866.43 and 89,878.97

Step by Step Solution

1. Step 1: Write the proportion equation
   161,499.58 : 222,866.43 = 89,878.97 : x
2. Step 2: Convert to fraction form
   161,499.58/222,866.43 = 89,878.97/x
3. Step 3: Cross multiply
   161,499.58x = 222,866.43 × 89,878.97
4. Step 4: Simplify right side
   161,499.58x = 20,031,005,175.98
5. Step 5: Solve for x
   x = 20,031,005,175.98/161,499.58
6. Step 6: Final answer
   x = 124,031.31