Finding the Fourth Proportional to 359,616,647.06, 495,997,514.33 and 309,465,395.49

Step by Step Solution

1. Step 1: Write the proportion equation
   359,616,647.06 : 495,997,514.33 = 309,465,395.49 : x
2. Step 2: Convert to fraction form
   359,616,647.06/495,997,514.33 = 309,465,395.49/x
3. Step 3: Cross multiply
   359,616,647.06x = 495,997,514.33 × 309,465,395.49
4. Step 4: Simplify right side
   359,616,647.06x = 153,494,066,932,643,072
5. Step 5: Solve for x
   x = 153,494,066,932,643,072/359,616,647.06
6. Step 6: Final answer
   x = 426,826,923.03