Finding the Fourth Proportional to 146,405.34, 219,189.63 and 137,105.19

Step by Step Solution

1. Step 1: Write the proportion equation
   146,405.34 : 219,189.63 = 137,105.19 : x
2. Step 2: Convert to fraction form
   146,405.34/219,189.63 = 137,105.19/x
3. Step 3: Cross multiply
   146,405.34x = 219,189.63 × 137,105.19
4. Step 4: Simplify right side
   146,405.34x = 30,052,035,867.18
5. Step 5: Solve for x
   x = 30,052,035,867.18/146,405.34
6. Step 6: Final answer
   x = 205,265.98