Finding the Fourth Proportional to 162,610.52, 224,412.36 and 90,989

Step by Step Solution

1. Step 1: Write the proportion equation
   162,610.52 : 224,412.36 = 90,989 : x
2. Step 2: Convert to fraction form
   162,610.52/224,412.36 = 90,989/x
3. Step 3: Cross multiply
   162,610.52x = 224,412.36 × 90,989
4. Step 4: Simplify right side
   162,610.52x = 20,419,056,224.04
5. Step 5: Solve for x
   x = 20,419,056,224.04/162,610.52
6. Step 6: Final answer
   x = 125,570.33