Finding the Fourth Proportional to 162,304.68, 223,981.59 and 90,687.72

Step by Step Solution

1. Step 1: Write the proportion equation
   162,304.68 : 223,981.59 = 90,687.72 : x
2. Step 2: Convert to fraction form
   162,304.68/223,981.59 = 90,687.72/x
3. Step 3: Cross multiply
   162,304.68x = 223,981.59 × 90,687.72
4. Step 4: Simplify right side
   162,304.68x = 20,312,379,719.07
5. Step 5: Solve for x
   x = 20,312,379,719.07/162,304.68
6. Step 6: Final answer
   x = 125,149.69