Finding the Fourth Proportional to 154,443.52, 213,150.72 and 87,362.56

Step by Step Solution

1. Step 1: Write the proportion equation
   154,443.52 : 213,150.72 = 87,362.56 : x
2. Step 2: Convert to fraction form
   154,443.52/213,150.72 = 87,362.56/x
3. Step 3: Cross multiply
   154,443.52x = 213,150.72 × 87,362.56
4. Step 4: Simplify right side
   154,443.52x = 18,621,392,565.04
5. Step 5: Solve for x
   x = 18,621,392,565.04/154,443.52
6. Step 6: Final answer
   x = 120,570.89