Finding the Fourth Proportional to 426,546,389.46, 588,636,194.15 and 238,377,823.89

Step by Step Solution

1. Step 1: Write the proportion equation
   426,546,389.46 : 588,636,194.15 = 238,377,823.89 : x
2. Step 2: Convert to fraction form
   426,546,389.46/588,636,194.15 = 238,377,823.89/x
3. Step 3: Cross multiply
   426,546,389.46x = 588,636,194.15 × 238,377,823.89
4. Step 4: Simplify right side
   426,546,389.46x = 140,317,815,023,176,640
5. Step 5: Solve for x
   x = 140,317,815,023,176,640/426,546,389.46
6. Step 6: Final answer
   x = 328,962,613.42