Finding the Fourth Proportional to 387,951,582.73, 582,004,033.98 and 142,310,498.35

Step by Step Solution

1. Step 1: Write the proportion equation
   387,951,582.73 : 582,004,033.98 = 142,310,498.35 : x
2. Step 2: Convert to fraction form
   387,951,582.73/582,004,033.98 = 142,310,498.35/x
3. Step 3: Cross multiply
   387,951,582.73x = 582,004,033.98 × 142,310,498.35
4. Step 4: Simplify right side
   387,951,582.73x = 82,825,284,117,404,128
5. Step 5: Solve for x
   x = 82,825,284,117,404,128/387,951,582.73
6. Step 6: Final answer
   x = 213,493,868.32