Finding the Fourth Proportional to 288,456,574.41, 433,117,100.69 and 249,714,525.51

Step by Step Solution

1. Step 1: Write the proportion equation
   288,456,574.41 : 433,117,100.69 = 249,714,525.51 : x
2. Step 2: Convert to fraction form
   288,456,574.41/433,117,100.69 = 249,714,525.51/x
3. Step 3: Cross multiply
   288,456,574.41x = 433,117,100.69 × 249,714,525.51
4. Step 4: Simplify right side
   288,456,574.41x = 108,155,631,287,821,664
5. Step 5: Solve for x
   x = 108,155,631,287,821,664/288,456,574.41
6. Step 6: Final answer
   x = 374,945,974.14