Finding the Fourth Proportional to 22,870,111.86, 31,560,778.14 and 13,579,537.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,870,111.86 : 31,560,778.14 = 13,579,537.20 : x
2. Step 2: Convert to fraction form
   22,870,111.86/31,560,778.14 = 13,579,537.20/x
3. Step 3: Cross multiply
   22,870,111.86x = 31,560,778.14 × 13,579,537.20
4. Step 4: Simplify right side
   22,870,111.86x = 428,580,760,813,076.81
5. Step 5: Solve for x
   x = 428,580,760,813,076.81/22,870,111.86
6. Step 6: Final answer
   x = 18,739,775.45