Finding the Fourth Proportional to 22,456,288.22, 30,989,863.06 and 12,398,111.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,456,288.22 : 30,989,863.06 = 12,398,111.20 : x
2. Step 2: Convert to fraction form
   22,456,288.22/30,989,863.06 = 12,398,111.20/x
3. Step 3: Cross multiply
   22,456,288.22x = 30,989,863.06 × 12,398,111.20
4. Step 4: Simplify right side
   22,456,288.22x = 384,215,768,290,652.25
5. Step 5: Solve for x
   x = 384,215,768,290,652.25/22,456,288.22
6. Step 6: Final answer
   x = 17,109,495.77