Finding the Fourth Proportional to 21,807,941.50, 30,095,164.71 and 12,018,738.16

Step by Step Solution

1. Step 1: Write the proportion equation
   21,807,941.50 : 30,095,164.71 = 12,018,738.16 : x
2. Step 2: Convert to fraction form
   21,807,941.50/30,095,164.71 = 12,018,738.16/x
3. Step 3: Cross multiply
   21,807,941.50x = 30,095,164.71 × 12,018,738.16
4. Step 4: Simplify right side
   21,807,941.50x = 361,705,904,531,562.38
5. Step 5: Solve for x
   x = 361,705,904,531,562.38/21,807,941.50
6. Step 6: Final answer
   x = 16,585,971.88