Finding the Fourth Proportional to 12,998,185.56, 19,503,917.10 and 8,683,185.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,998,185.56 : 19,503,917.10 = 8,683,185.96 : x
2. Step 2: Convert to fraction form
   12,998,185.56/19,503,917.10 = 8,683,185.96/x
3. Step 3: Cross multiply
   12,998,185.56x = 19,503,917.10 × 8,683,185.96
4. Step 4: Simplify right side
   12,998,185.56x = 169,356,139,127,723.94
5. Step 5: Solve for x
   x = 169,356,139,127,723.94/12,998,185.56
6. Step 6: Final answer
   x = 13,029,213.83