Finding the Fourth Proportional to 10,388,626.15, 14,337,728.15 and 5,978,261.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,388,626.15 : 14,337,728.15 = 5,978,261.20 : x
2. Step 2: Convert to fraction form
   10,388,626.15/14,337,728.15 = 5,978,261.20/x
3. Step 3: Cross multiply
   10,388,626.15x = 14,337,728.15 × 5,978,261.20
4. Step 4: Simplify right side
   10,388,626.15x = 85,714,683,895,292.78
5. Step 5: Solve for x
   x = 85,714,683,895,292.78/10,388,626.15
6. Step 6: Final answer
   x = 8,250,819.95