Finding the Fourth Proportional to 12,904,664.50, 19,356,993.27 and 4,818,270.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,904,664.50 : 19,356,993.27 = 4,818,270.72 : x
2. Step 2: Convert to fraction form
   12,904,664.50/19,356,993.27 = 4,818,270.72/x
3. Step 3: Cross multiply
   12,904,664.50x = 19,356,993.27 × 4,818,270.72
4. Step 4: Simplify right side
   12,904,664.50x = 93,267,233,900,078.05
5. Step 5: Solve for x
   x = 93,267,233,900,078.05/12,904,664.50
6. Step 6: Final answer
   x = 7,227,404.78