Finding the Fourth Proportional to 419,448,828.52, 579,087,397.98 and 372,910,317.40

Step by Step Solution

1. Step 1: Write the proportion equation
   419,448,828.52 : 579,087,397.98 = 372,910,317.40 : x
2. Step 2: Convert to fraction form
   419,448,828.52/579,087,397.98 = 372,910,317.40/x
3. Step 3: Cross multiply
   419,448,828.52x = 579,087,397.98 × 372,910,317.40
4. Step 4: Simplify right side
   419,448,828.52x = 215,947,665,383,061,920
5. Step 5: Solve for x
   x = 215,947,665,383,061,920/419,448,828.52
6. Step 6: Final answer
   x = 514,836,735.02