Finding the Fourth Proportional to 339,408, 468,392.76 and 188,514.72

Step by Step Solution

1. Step 1: Write the proportion equation
   339,408 : 468,392.76 = 188,514.72 : x
2. Step 2: Convert to fraction form
   339,408/468,392.76 = 188,514.72/x
3. Step 3: Cross multiply
   339,408x = 468,392.76 × 188,514.72
4. Step 4: Simplify right side
   339,408x = 88,298,930,001.43
5. Step 5: Solve for x
   x = 88,298,930,001.43/339,408
6. Step 6: Final answer
   x = 260,155.71