Finding the Fourth Proportional to 13,449.39, 18,559.89 and 7,480.93

Step by Step Solution

1. Step 1: Write the proportion equation
   13,449.39 : 18,559.89 = 7,480.93 : x
2. Step 2: Convert to fraction form
   13,449.39/18,559.89 = 7,480.93/x
3. Step 3: Cross multiply
   13,449.39x = 18,559.89 × 7,480.93
4. Step 4: Simplify right side
   13,449.39x = 138,845,200.49
5. Step 5: Solve for x
   x = 138,845,200.49/13,449.39
6. Step 6: Final answer
   x = 10,323.53