Finding the Fourth Proportional to 13,697.69, 18,902.84 and 7,410.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,697.69 : 18,902.84 = 7,410.06 : x
2. Step 2: Convert to fraction form
   13,697.69/18,902.84 = 7,410.06/x
3. Step 3: Cross multiply
   13,697.69x = 18,902.84 × 7,410.06
4. Step 4: Simplify right side
   13,697.69x = 140,071,141.52
5. Step 5: Solve for x
   x = 140,071,141.52/13,697.69
6. Step 6: Final answer
   x = 10,225.90