Finding the Fourth Proportional to 162,089.32, 223,695.94 and 90,480.10

Step by Step Solution

1. Step 1: Write the proportion equation
   162,089.32 : 223,695.94 = 90,480.10 : x
2. Step 2: Convert to fraction form
   162,089.32/223,695.94 = 90,480.10/x
3. Step 3: Cross multiply
   162,089.32x = 223,695.94 × 90,480.10
4. Step 4: Simplify right side
   162,089.32x = 20,240,031,020.79
5. Step 5: Solve for x
   x = 20,240,031,020.79/162,089.32
6. Step 6: Final answer
   x = 124,869.62