Finding the Fourth Proportional to 14,513.89, 21,772.77 and 7,118.59

Step by Step Solution

1. Step 1: Write the proportion equation
   14,513.89 : 21,772.77 = 7,118.59 : x
2. Step 2: Convert to fraction form
   14,513.89/21,772.77 = 7,118.59/x
3. Step 3: Cross multiply
   14,513.89x = 21,772.77 × 7,118.59
4. Step 4: Simplify right side
   14,513.89x = 154,991,422.79
5. Step 5: Solve for x
   x = 154,991,422.79/14,513.89
6. Step 6: Final answer
   x = 10,678.83