Finding the Fourth Proportional to 13,451.05, 18,563.34 and 7,482.70

Step by Step Solution

1. Step 1: Write the proportion equation
   13,451.05 : 18,563.34 = 7,482.70 : x
2. Step 2: Convert to fraction form
   13,451.05/18,563.34 = 7,482.70/x
3. Step 3: Cross multiply
   13,451.05x = 18,563.34 × 7,482.70
4. Step 4: Simplify right side
   13,451.05x = 138,903,904.22
5. Step 5: Solve for x
   x = 138,903,904.22/13,451.05
6. Step 6: Final answer
   x = 10,326.62