Finding the Fourth Proportional to 479,499,007.52, 661,708,608.72 and 259,482,439.52

Step by Step Solution

1. Step 1: Write the proportion equation
   479,499,007.52 : 661,708,608.72 = 259,482,439.52 : x
2. Step 2: Convert to fraction form
   479,499,007.52/661,708,608.72 = 259,482,439.52/x
3. Step 3: Cross multiply
   479,499,007.52x = 661,708,608.72 × 259,482,439.52
4. Step 4: Simplify right side
   479,499,007.52x = 171,701,764,042,050,752
5. Step 5: Solve for x
   x = 171,701,764,042,050,752/479,499,007.52
6. Step 6: Final answer
   x = 358,085,754.82