Finding the Fourth Proportional to 8,443,790.73, 12,665,686.50 and 3,393,920.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,443,790.73 : 12,665,686.50 = 3,393,920.25 : x
2. Step 2: Convert to fraction form
   8,443,790.73/12,665,686.50 = 3,393,920.25/x
3. Step 3: Cross multiply
   8,443,790.73x = 12,665,686.50 × 3,393,920.25
4. Step 4: Simplify right side
   8,443,790.73x = 42,986,329,892,501.62
5. Step 5: Solve for x
   x = 42,986,329,892,501.62/8,443,790.73
6. Step 6: Final answer
   x = 5,090,880.54