Finding the Fourth Proportional to 339,042.02, 467,899.86 and 188,139.02

Step by Step Solution

1. Step 1: Write the proportion equation
   339,042.02 : 467,899.86 = 188,139.02 : x
2. Step 2: Convert to fraction form
   339,042.02/467,899.86 = 188,139.02/x
3. Step 3: Cross multiply
   339,042.02x = 467,899.86 × 188,139.02
4. Step 4: Simplify right side
   339,042.02x = 88,030,221,118.54
5. Step 5: Solve for x
   x = 88,030,221,118.54/339,042.02
6. Step 6: Final answer
   x = 259,643.98