Finding the Fourth Proportional to 162,111.76, 223,714.38 and 90,491.68

Step by Step Solution

1. Step 1: Write the proportion equation
   162,111.76 : 223,714.38 = 90,491.68 : x
2. Step 2: Convert to fraction form
   162,111.76/223,714.38 = 90,491.68/x
3. Step 3: Cross multiply
   162,111.76x = 223,714.38 × 90,491.68
4. Step 4: Simplify right side
   162,111.76x = 20,244,290,086.36
5. Step 5: Solve for x
   x = 20,244,290,086.36/162,111.76
6. Step 6: Final answer
   x = 124,878.60