Finding the Fourth Proportional to 115,150,793.80, 158,907,865.04 and 65,591,148.72

Step by Step Solution

1. Step 1: Write the proportion equation
   115,150,793.80 : 158,907,865.04 = 65,591,148.72 : x
2. Step 2: Convert to fraction form
   115,150,793.80/158,907,865.04 = 65,591,148.72/x
3. Step 3: Cross multiply
   115,150,793.80x = 158,907,865.04 × 65,591,148.72
4. Step 4: Simplify right side
   115,150,793.80x = 10,422,949,408,616,328
5. Step 5: Solve for x
   x = 10,422,949,408,616,328/115,150,793.80
6. Step 6: Final answer
   x = 90,515,653.99