Finding the Fourth Proportional to 338,003, 466,453.88 and 187,109.72

Step by Step Solution

1. Step 1: Write the proportion equation
   338,003 : 466,453.88 = 187,109.72 : x
2. Step 2: Convert to fraction form
   338,003/466,453.88 = 187,109.72/x
3. Step 3: Cross multiply
   338,003x = 466,453.88 × 187,109.72
4. Step 4: Simplify right side
   338,003x = 87,278,054,879.71
5. Step 5: Solve for x
   x = 87,278,054,879.71/338,003
6. Step 6: Final answer
   x = 258,216.81