Finding the Fourth Proportional to 13,290.68, 18,341.37 and 7,322.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,290.68 : 18,341.37 = 7,322.30 : x
2. Step 2: Convert to fraction form
   13,290.68/18,341.37 = 7,322.30/x
3. Step 3: Cross multiply
   13,290.68x = 18,341.37 × 7,322.30
4. Step 4: Simplify right side
   13,290.68x = 134,300,976.94
5. Step 5: Solve for x
   x = 134,300,976.94/13,290.68
6. Step 6: Final answer
   x = 10,104.90