Finding the Fourth Proportional to 13,104.84, 18,085.50 and 7,799.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,104.84 : 18,085.50 = 7,799.88 : x
2. Step 2: Convert to fraction form
   13,104.84/18,085.50 = 7,799.88/x
3. Step 3: Cross multiply
   13,104.84x = 18,085.50 × 7,799.88
4. Step 4: Simplify right side
   13,104.84x = 141,064,729.74
5. Step 5: Solve for x
   x = 141,064,729.74/13,104.84
6. Step 6: Final answer
   x = 10,764.32