Finding the Fourth Proportional to 419,119.85, 628,300.72 and 152,818.09

Step by Step Solution

1. Step 1: Write the proportion equation
   419,119.85 : 628,300.72 = 152,818.09 : x
2. Step 2: Convert to fraction form
   419,119.85/628,300.72 = 152,818.09/x
3. Step 3: Cross multiply
   419,119.85x = 628,300.72 × 152,818.09
4. Step 4: Simplify right side
   419,119.85x = 96,015,712,834.52
5. Step 5: Solve for x
   x = 96,015,712,834.52/419,119.85
6. Step 6: Final answer
   x = 229,088.92