Finding the Fourth Proportional to 22,456,343.61, 30,989,939.31 and 12,398,166.45

Step by Step Solution

1. Step 1: Write the proportion equation
   22,456,343.61 : 30,989,939.31 = 12,398,166.45 : x
2. Step 2: Convert to fraction form
   22,456,343.61/30,989,939.31 = 12,398,166.45/x
3. Step 3: Cross multiply
   22,456,343.61x = 30,989,939.31 × 12,398,166.45
4. Step 4: Simplify right side
   22,456,343.61x = 384,218,425,840,778.12
5. Step 5: Solve for x
   x = 384,218,425,840,778.12/22,456,343.61
6. Step 6: Final answer
   x = 17,109,571.91