Finding the Fourth Proportional to 161,498.24, 222,871.20 and 89,885.60

Step by Step Solution

1. Step 1: Write the proportion equation
   161,498.24 : 222,871.20 = 89,885.60 : x
2. Step 2: Convert to fraction form
   161,498.24/222,871.20 = 89,885.60/x
3. Step 3: Cross multiply
   161,498.24x = 222,871.20 × 89,885.60
4. Step 4: Simplify right side
   161,498.24x = 20,032,911,534.72
5. Step 5: Solve for x
   x = 20,032,911,534.72/161,498.24
6. Step 6: Final answer
   x = 124,044.15