Finding the Fourth Proportional to 12,806,930.27, 17,673,982.70 and 7,300,205.21

Step by Step Solution

1. Step 1: Write the proportion equation
   12,806,930.27 : 17,673,982.70 = 7,300,205.21 : x
2. Step 2: Convert to fraction form
   12,806,930.27/17,673,982.70 = 7,300,205.21/x
3. Step 3: Cross multiply
   12,806,930.27x = 17,673,982.70 × 7,300,205.21
4. Step 4: Simplify right side
   12,806,930.27x = 129,023,700,595,673.81
5. Step 5: Solve for x
   x = 129,023,700,595,673.81/12,806,930.27
6. Step 6: Final answer
   x = 10,074,521.99