Finding the Fourth Proportional to 288,456,620.27, 433,117,169.51 and 249,714,571.37

Step by Step Solution

1. Step 1: Write the proportion equation
   288,456,620.27 : 433,117,169.51 = 249,714,571.37 : x
2. Step 2: Convert to fraction form
   288,456,620.27/433,117,169.51 = 249,714,571.37/x
3. Step 3: Cross multiply
   288,456,620.27x = 433,117,169.51 × 249,714,571.37
4. Step 4: Simplify right side
   288,456,620.27x = 108,155,668,333,763,120
5. Step 5: Solve for x
   x = 108,155,668,333,763,120/288,456,620.27
6. Step 6: Final answer
   x = 374,946,042.96