Finding the Fourth Proportional to 466,248,505.89, 643,419,606.82 and 254,555,329.59

Step by Step Solution

1. Step 1: Write the proportion equation
   466,248,505.89 : 643,419,606.82 = 254,555,329.59 : x
2. Step 2: Convert to fraction form
   466,248,505.89/643,419,606.82 = 254,555,329.59/x
3. Step 3: Cross multiply
   466,248,505.89x = 643,419,606.82 × 254,555,329.59
4. Step 4: Simplify right side
   466,248,505.89x = 163,785,890,074,243,456
5. Step 5: Solve for x
   x = 163,785,890,074,243,456/466,248,505.89
6. Step 6: Final answer
   x = 351,284,536.05