Finding the Fourth Proportional to 9,780,209.20, 14,672,282.10 and 3,389,139.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,780,209.20 : 14,672,282.10 = 3,389,139.10 : x
2. Step 2: Convert to fraction form
   9,780,209.20/14,672,282.10 = 3,389,139.10/x
3. Step 3: Cross multiply
   9,780,209.20x = 14,672,282.10 × 3,389,139.10
4. Step 4: Simplify right side
   9,780,209.20x = 49,726,404,951,340.11
5. Step 5: Solve for x
   x = 49,726,404,951,340.11/9,780,209.20
6. Step 6: Final answer
   x = 5,084,390.73