Finding the Fourth Proportional to 162,015.69, 223,577.01 and 90,394.18

Step by Step Solution

1. Step 1: Write the proportion equation
   162,015.69 : 223,577.01 = 90,394.18 : x
2. Step 2: Convert to fraction form
   162,015.69/223,577.01 = 90,394.18/x
3. Step 3: Cross multiply
   162,015.69x = 223,577.01 × 90,394.18
4. Step 4: Simplify right side
   162,015.69x = 20,210,059,926.86
5. Step 5: Solve for x
   x = 20,210,059,926.86/162,015.69
6. Step 6: Final answer
   x = 124,741.37