Finding the Fourth Proportional to 456,160,584.89, 629,514,886.91 and 257,917,823.39

Step by Step Solution

1. Step 1: Write the proportion equation
   456,160,584.89 : 629,514,886.91 = 257,917,823.39 : x
2. Step 2: Convert to fraction form
   456,160,584.89/629,514,886.91 = 257,917,823.39/x
3. Step 3: Cross multiply
   456,160,584.89x = 629,514,886.91 × 257,917,823.39
4. Step 4: Simplify right side
   456,160,584.89x = 162,363,109,418,992,032
5. Step 5: Solve for x
   x = 162,363,109,418,992,032/456,160,584.89
6. Step 6: Final answer
   x = 355,934,104.78