Finding the Fourth Proportional to 557,862,493.80, 769,827,123.72 and 303,544,900.50

Step by Step Solution

1. Step 1: Write the proportion equation
   557,862,493.80 : 769,827,123.72 = 303,544,900.50 : x
2. Step 2: Convert to fraction form
   557,862,493.80/769,827,123.72 = 303,544,900.50/x
3. Step 3: Cross multiply
   557,862,493.80x = 769,827,123.72 × 303,544,900.50
4. Step 4: Simplify right side
   557,862,493.80x = 233,677,097,671,788,608
5. Step 5: Solve for x
   x = 233,677,097,671,788,608/557,862,493.80
6. Step 6: Final answer
   x = 418,879,383.84