Finding the Fourth Proportional to 13,697.48, 18,902.52 and 7,409.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,697.48 : 18,902.52 = 7,409.88 : x
2. Step 2: Convert to fraction form
   13,697.48/18,902.52 = 7,409.88/x
3. Step 3: Cross multiply
   13,697.48x = 18,902.52 × 7,409.88
4. Step 4: Simplify right side
   13,697.48x = 140,065,404.90
5. Step 5: Solve for x
   x = 140,065,404.90/13,697.48
6. Step 6: Final answer
   x = 10,225.63