Finding the Fourth Proportional to 10,745.40, 14,835.56 and 7,387.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,745.40 : 14,835.56 = 7,387.12 : x
2. Step 2: Convert to fraction form
   10,745.40/14,835.56 = 7,387.12/x
3. Step 3: Cross multiply
   10,745.40x = 14,835.56 × 7,387.12
4. Step 4: Simplify right side
   10,745.40x = 109,592,061.99
5. Step 5: Solve for x
   x = 109,592,061.99/10,745.40
6. Step 6: Final answer
   x = 10,198.97