Finding the Fourth Proportional to 89,279,249.29, 123,218,810.82 and 54,492,154.79

Step by Step Solution

1. Step 1: Write the proportion equation
   89,279,249.29 : 123,218,810.82 = 54,492,154.79 : x
2. Step 2: Convert to fraction form
   89,279,249.29/123,218,810.82 = 54,492,154.79/x
3. Step 3: Cross multiply
   89,279,249.29x = 123,218,810.82 × 54,492,154.79
4. Step 4: Simplify right side
   89,279,249.29x = 6,714,458,511,627,072
5. Step 5: Solve for x
   x = 6,714,458,511,627,072/89,279,249.29
6. Step 6: Final answer
   x = 75,207,380.94