Finding the Fourth Proportional to 22,456,365.92, 30,989,970.30 and 12,398,188.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,456,365.92 : 30,989,970.30 = 12,398,188.88 : x
2. Step 2: Convert to fraction form
   22,456,365.92/30,989,970.30 = 12,398,188.88/x
3. Step 3: Cross multiply
   22,456,365.92x = 30,989,970.30 × 12,398,188.88
4. Step 4: Simplify right side
   22,456,365.92x = 384,219,505,164,990.31
5. Step 5: Solve for x
   x = 384,219,505,164,990.31/22,456,365.92
6. Step 6: Final answer
   x = 17,109,602.98