Finding the Fourth Proportional to 13,499.72, 20,243.08 and 7,654.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,499.72 : 20,243.08 = 7,654.76 : x
2. Step 2: Convert to fraction form
   13,499.72/20,243.08 = 7,654.76/x
3. Step 3: Cross multiply
   13,499.72x = 20,243.08 × 7,654.76
4. Step 4: Simplify right side
   13,499.72x = 154,955,919.06
5. Step 5: Solve for x
   x = 154,955,919.06/13,499.72
6. Step 6: Final answer
   x = 11,478.45