Finding the Fourth Proportional to 823,443,648.09, 1,136,371,979.25 and 447,116,097.39

Step by Step Solution

1. Step 1: Write the proportion equation
   823,443,648.09 : 1,136,371,979.25 = 447,116,097.39 : x
2. Step 2: Convert to fraction form
   823,443,648.09/1,136,371,979.25 = 447,116,097.39/x
3. Step 3: Cross multiply
   823,443,648.09x = 1,136,371,979.25 × 447,116,097.39
4. Step 4: Simplify right side
   823,443,648.09x = 508,090,204,545,610,048
5. Step 5: Solve for x
   x = 508,090,204,545,610,048/823,443,648.09
6. Step 6: Final answer
   x = 617,030,935.54