Finding the Fourth Proportional to 13,499.24, 18,630.60 and 7,910.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,499.24 : 18,630.60 = 7,910.24 : x
2. Step 2: Convert to fraction form
   13,499.24/18,630.60 = 7,910.24/x
3. Step 3: Cross multiply
   13,499.24x = 18,630.60 × 7,910.24
4. Step 4: Simplify right side
   13,499.24x = 147,372,517.34
5. Step 5: Solve for x
   x = 147,372,517.34/13,499.24
6. Step 6: Final answer
   x = 10,917.10