Finding the Fourth Proportional to 161,426.18, 222,764.77 and 89,804.66

Step by Step Solution

1. Step 1: Write the proportion equation
   161,426.18 : 222,764.77 = 89,804.66 : x
2. Step 2: Convert to fraction form
   161,426.18/222,764.77 = 89,804.66/x
3. Step 3: Cross multiply
   161,426.18x = 222,764.77 × 89,804.66
4. Step 4: Simplify right side
   161,426.18x = 20,005,314,429.83
5. Step 5: Solve for x
   x = 20,005,314,429.83/161,426.18
6. Step 6: Final answer
   x = 123,928.56