Finding the Fourth Proportional to 162,729.80, 243,900.30 and 83,803.40

Step by Step Solution

1. Step 1: Write the proportion equation
   162,729.80 : 243,900.30 = 83,803.40 : x
2. Step 2: Convert to fraction form
   162,729.80/243,900.30 = 83,803.40/x
3. Step 3: Cross multiply
   162,729.80x = 243,900.30 × 83,803.40
4. Step 4: Simplify right side
   162,729.80x = 20,439,674,401.02
5. Step 5: Solve for x
   x = 20,439,674,401.02/162,729.80
6. Step 6: Final answer
   x = 125,604.99