Finding the Fourth Proportional to 22,370,390.25, 30,870,845.92 and 12,580,831.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,370,390.25 : 30,870,845.92 = 12,580,831.50 : x
2. Step 2: Convert to fraction form
   22,370,390.25/30,870,845.92 = 12,580,831.50/x
3. Step 3: Cross multiply
   22,370,390.25x = 30,870,845.92 × 12,580,831.50
4. Step 4: Simplify right side
   22,370,390.25x = 388,380,910,781,982.50
5. Step 5: Solve for x
   x = 388,380,910,781,982.50/22,370,390.25
6. Step 6: Final answer
   x = 17,361,382.90