Finding the Fourth Proportional to 161,113.08, 222,335.94 and 89,499.76

Step by Step Solution

1. Step 1: Write the proportion equation
   161,113.08 : 222,335.94 = 89,499.76 : x
2. Step 2: Convert to fraction form
   161,113.08/222,335.94 = 89,499.76/x
3. Step 3: Cross multiply
   161,113.08x = 222,335.94 × 89,499.76
4. Step 4: Simplify right side
   161,113.08x = 19,899,013,269.37
5. Step 5: Solve for x
   x = 19,899,013,269.37/161,113.08
6. Step 6: Final answer
   x = 123,509.61