Finding the Fourth Proportional to 10,799.50, 14,909.79 and 7,079.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,799.50 : 14,909.79 = 7,079.98 : x
2. Step 2: Convert to fraction form
   10,799.50/14,909.79 = 7,079.98/x
3. Step 3: Cross multiply
   10,799.50x = 14,909.79 × 7,079.98
4. Step 4: Simplify right side
   10,799.50x = 105,561,015.00
5. Step 5: Solve for x
   x = 105,561,015.00/10,799.50
6. Step 6: Final answer
   x = 9,774.62