Finding the Fourth Proportional to 8,145,259.31, 12,217,900.30 and 3,470,131.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,145,259.31 : 12,217,900.30 = 3,470,131.28 : x
2. Step 2: Convert to fraction form
   8,145,259.31/12,217,900.30 = 3,470,131.28/x
3. Step 3: Cross multiply
   8,145,259.31x = 12,217,900.30 × 3,470,131.28
4. Step 4: Simplify right side
   8,145,259.31x = 42,397,718,006,951.38
5. Step 5: Solve for x
   x = 42,397,718,006,951.38/8,145,259.31
6. Step 6: Final answer
   x = 5,205,201.75