Finding the Fourth Proportional to 10,005.72, 13,799.50 and 7,493.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,005.72 : 13,799.50 = 7,493.72 : x
2. Step 2: Convert to fraction form
   10,005.72/13,799.50 = 7,493.72/x
3. Step 3: Cross multiply
   10,005.72x = 13,799.50 × 7,493.72
4. Step 4: Simplify right side
   10,005.72x = 103,409,589.14
5. Step 5: Solve for x
   x = 103,409,589.14/10,005.72
6. Step 6: Final answer
   x = 10,335.05