Finding the Fourth Proportional to 12,806,429.43, 19,210,989.83 and 4,171,202.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,806,429.43 : 19,210,989.83 = 4,171,202.31 : x
2. Step 2: Convert to fraction form
   12,806,429.43/19,210,989.83 = 4,171,202.31/x
3. Step 3: Cross multiply
   12,806,429.43x = 19,210,989.83 × 4,171,202.31
4. Step 4: Simplify right side
   12,806,429.43x = 80,132,925,156,282.50
5. Step 5: Solve for x
   x = 80,132,925,156,282.50/12,806,429.43
6. Step 6: Final answer
   x = 6,257,241.77