Finding the Fourth Proportional to 12,904,665.50, 19,356,994.77 and 4,818,271.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,904,665.50 : 19,356,994.77 = 4,818,271.72 : x
2. Step 2: Convert to fraction form
   12,904,665.50/19,356,994.77 = 4,818,271.72/x
3. Step 3: Cross multiply
   12,904,665.50x = 19,356,994.77 × 4,818,271.72
4. Step 4: Simplify right side
   12,904,665.50x = 93,267,260,484,478.89
5. Step 5: Solve for x
   x = 93,267,260,484,478.89/12,904,665.50
6. Step 6: Final answer
   x = 7,227,406.28