Finding the Fourth Proportional to 1,095,877,139.06, 1,643,649,618.54 and 298,256,429.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095,877,139.06 : 1,643,649,618.54 = 298,256,429.91 : x
2. Step 2: Convert to fraction form
   1,095,877,139.06/1,643,649,618.54 = 298,256,429.91/x
3. Step 3: Cross multiply
   1,095,877,139.06x = 1,643,649,618.54 × 298,256,429.91
4. Step 4: Simplify right side
   1,095,877,139.06x = 490,229,067,248,673,792
5. Step 5: Solve for x
   x = 490,229,067,248,673,792/1,095,877,139.06
6. Step 6: Final answer
   x = 447,339,441.42