Finding the Fourth Proportional to 154,756.80, 213,609.83 and 101,049.86

Step by Step Solution

1. Step 1: Write the proportion equation
   154,756.80 : 213,609.83 = 101,049.86 : x
2. Step 2: Convert to fraction form
   154,756.80/213,609.83 = 101,049.86/x
3. Step 3: Cross multiply
   154,756.80x = 213,609.83 × 101,049.86
4. Step 4: Simplify right side
   154,756.80x = 21,585,243,444.90
5. Step 5: Solve for x
   x = 21,585,243,444.90/154,756.80
6. Step 6: Final answer
   x = 139,478.48