Finding the Fourth Proportional to 463,078,783.33, 639,049,836.59 and 254,248,387.09

Step by Step Solution

1. Step 1: Write the proportion equation
   463,078,783.33 : 639,049,836.59 = 254,248,387.09 : x
2. Step 2: Convert to fraction form
   463,078,783.33/639,049,836.59 = 254,248,387.09/x
3. Step 3: Cross multiply
   463,078,783.33x = 639,049,836.59 × 254,248,387.09
4. Step 4: Simplify right side
   463,078,783.33x = 162,477,390,221,220,128
5. Step 5: Solve for x
   x = 162,477,390,221,220,128/463,078,783.33
6. Step 6: Final answer
   x = 350,863,386.69