Finding the Fourth Proportional to 10,115,404.69, 13,959,230.24 and 5,469,157.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,115,404.69 : 13,959,230.24 = 5,469,157.21 : x
2. Step 2: Convert to fraction form
   10,115,404.69/13,959,230.24 = 5,469,157.21/x
3. Step 3: Cross multiply
   10,115,404.69x = 13,959,230.24 × 5,469,157.21
4. Step 4: Simplify right side
   10,115,404.69x = 76,345,224,616,004.09
5. Step 5: Solve for x
   x = 76,345,224,616,004.09/10,115,404.69
6. Step 6: Final answer
   x = 7,547,421.68