Finding the Fourth Proportional to 21,313,654.47, 29,406,128.83 and 13,045,096.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,313,654.47 : 29,406,128.83 = 13,045,096.82 : x
2. Step 2: Convert to fraction form
   21,313,654.47/29,406,128.83 = 13,045,096.82/x
3. Step 3: Cross multiply
   21,313,654.47x = 29,406,128.83 × 13,045,096.82
4. Step 4: Simplify right side
   21,313,654.47x = 383,605,797,729,645.88
5. Step 5: Solve for x
   x = 383,605,797,729,645.88/21,313,654.47
6. Step 6: Final answer
   x = 17,998,124.08