Finding the Fourth Proportional to 161,256.57, 222,536.72 and 88,662.51

Step by Step Solution

1. Step 1: Write the proportion equation
   161,256.57 : 222,536.72 = 88,662.51 : x
2. Step 2: Convert to fraction form
   161,256.57/222,536.72 = 88,662.51/x
3. Step 3: Cross multiply
   161,256.57x = 222,536.72 × 88,662.51
4. Step 4: Simplify right side
   161,256.57x = 19,730,663,719.05
5. Step 5: Solve for x
   x = 19,730,663,719.05/161,256.57
6. Step 6: Final answer
   x = 122,355.72