Finding the Fourth Proportional to 99,646,081.92, 137,511,678.69 and 55,593,087.62

Step by Step Solution

1. Step 1: Write the proportion equation
   99,646,081.92 : 137,511,678.69 = 55,593,087.62 : x
2. Step 2: Convert to fraction form
   99,646,081.92/137,511,678.69 = 55,593,087.62/x
3. Step 3: Cross multiply
   99,646,081.92x = 137,511,678.69 × 55,593,087.62
4. Step 4: Simplify right side
   99,646,081.92x = 7,644,698,801,498,899
5. Step 5: Solve for x
   x = 7,644,698,801,498,899/99,646,081.92
6. Step 6: Final answer
   x = 76,718,508.69