Finding the Fourth Proportional to 309,863,894.82, 464,687,211.52 and 91,455,961.38

Step by Step Solution

1. Step 1: Write the proportion equation
   309,863,894.82 : 464,687,211.52 = 91,455,961.38 : x
2. Step 2: Convert to fraction form
   309,863,894.82/464,687,211.52 = 91,455,961.38/x
3. Step 3: Cross multiply
   309,863,894.82x = 464,687,211.52 × 91,455,961.38
4. Step 4: Simplify right side
   309,863,894.82x = 42,498,415,670,553,008
5. Step 5: Solve for x
   x = 42,498,415,670,553,008/309,863,894.82
6. Step 6: Final answer
   x = 137,151,879.84