Finding the Fourth Proportional to 315,755,361.69, 473,596,862.72 and 82,608,581.32

Step by Step Solution

1. Step 1: Write the proportion equation
   315,755,361.69 : 473,596,862.72 = 82,608,581.32 : x
2. Step 2: Convert to fraction form
   315,755,361.69/473,596,862.72 = 82,608,581.32/x
3. Step 3: Cross multiply
   315,755,361.69x = 473,596,862.72 × 82,608,581.32
4. Step 4: Simplify right side
   315,755,361.69x = 39,123,164,945,338,896
5. Step 5: Solve for x
   x = 39,123,164,945,338,896/315,755,361.69
6. Step 6: Final answer
   x = 123,903,406.54