Finding the Fourth Proportional to 154,103.50, 212,662.84 and 83,447.50

Step by Step Solution

1. Step 1: Write the proportion equation
   154,103.50 : 212,662.84 = 83,447.50 : x
2. Step 2: Convert to fraction form
   154,103.50/212,662.84 = 83,447.50/x
3. Step 3: Cross multiply
   154,103.50x = 212,662.84 × 83,447.50
4. Step 4: Simplify right side
   154,103.50x = 17,746,182,340.90
5. Step 5: Solve for x
   x = 17,746,182,340.90/154,103.50
6. Step 6: Final answer
   x = 115,157.56