Finding the Fourth Proportional to 154,423.30, 231,462.15 and 87,895.30

Step by Step Solution

1. Step 1: Write the proportion equation
   154,423.30 : 231,462.15 = 87,895.30 : x
2. Step 2: Convert to fraction form
   154,423.30/231,462.15 = 87,895.30/x
3. Step 3: Cross multiply
   154,423.30x = 231,462.15 × 87,895.30
4. Step 4: Simplify right side
   154,423.30x = 20,344,435,112.90
5. Step 5: Solve for x
   x = 20,344,435,112.90/154,423.30
6. Step 6: Final answer
   x = 131,744.59