Finding the Fourth Proportional to 8,139,663.72, 12,211,223.58 and 3,090,862.44

Step by Step Solution

1. Step 1: Write the proportion equation
   8,139,663.72 : 12,211,223.58 = 3,090,862.44 : x
2. Step 2: Convert to fraction form
   8,139,663.72/12,211,223.58 = 3,090,862.44/x
3. Step 3: Cross multiply
   8,139,663.72x = 12,211,223.58 × 3,090,862.44
4. Step 4: Simplify right side
   8,139,663.72x = 37,743,212,309,864.34
5. Step 5: Solve for x
   x = 37,743,212,309,864.34/8,139,663.72
6. Step 6: Final answer
   x = 4,636,949.83