Finding the Fourth Proportional to 14,172.85, 19,558.89 and 7,799.61

Step by Step Solution

1. Step 1: Write the proportion equation
   14,172.85 : 19,558.89 = 7,799.61 : x
2. Step 2: Convert to fraction form
   14,172.85/19,558.89 = 7,799.61/x
3. Step 3: Cross multiply
   14,172.85x = 19,558.89 × 7,799.61
4. Step 4: Simplify right side
   14,172.85x = 152,551,714.03
5. Step 5: Solve for x
   x = 152,551,714.03/14,172.85
6. Step 6: Final answer
   x = 10,763.66