Finding the Fourth Proportional to 13,698.06, 18,903.24 and 7,410.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,698.06 : 18,903.24 = 7,410.42 : x
2. Step 2: Convert to fraction form
   13,698.06/18,903.24 = 7,410.42/x
3. Step 3: Cross multiply
   13,698.06x = 18,903.24 × 7,410.42
4. Step 4: Simplify right side
   13,698.06x = 140,080,947.76
5. Step 5: Solve for x
   x = 140,080,947.76/13,698.06
6. Step 6: Final answer
   x = 10,226.33