Finding the Fourth Proportional to 627,078,011.76, 865,422,796.72 and 344,870,182.68

Step by Step Solution

1. Step 1: Write the proportion equation
   627,078,011.76 : 865,422,796.72 = 344,870,182.68 : x
2. Step 2: Convert to fraction form
   627,078,011.76/865,422,796.72 = 344,870,182.68/x
3. Step 3: Cross multiply
   627,078,011.76x = 865,422,796.72 × 344,870,182.68
4. Step 4: Simplify right side
   627,078,011.76x = 298,458,518,000,262,912
5. Step 5: Solve for x
   x = 298,458,518,000,262,912/627,078,011.76
6. Step 6: Final answer
   x = 475,951,177.37