Finding the Fourth Proportional to 21,562,260.96, 29,752,409.71 and 12,740,483.22

Step by Step Solution

1. Step 1: Write the proportion equation
   21,562,260.96 : 29,752,409.71 = 12,740,483.22 : x
2. Step 2: Convert to fraction form
   21,562,260.96/29,752,409.71 = 12,740,483.22/x
3. Step 3: Cross multiply
   21,562,260.96x = 29,752,409.71 × 12,740,483.22
4. Step 4: Simplify right side
   21,562,260.96x = 379,060,076,632,968.88
5. Step 5: Solve for x
   x = 379,060,076,632,968.88/21,562,260.96
6. Step 6: Final answer
   x = 17,579,792.65