Finding the Fourth Proportional to 162,074.97, 223,654.35 and 90,459.61

Step by Step Solution

1. Step 1: Write the proportion equation
   162,074.97 : 223,654.35 = 90,459.61 : x
2. Step 2: Convert to fraction form
   162,074.97/223,654.35 = 90,459.61/x
3. Step 3: Cross multiply
   162,074.97x = 223,654.35 × 90,459.61
4. Step 4: Simplify right side
   162,074.97x = 20,231,685,055.89
5. Step 5: Solve for x
   x = 20,231,685,055.89/162,074.97
6. Step 6: Final answer
   x = 124,829.18