Finding the Fourth Proportional to 13,504.71, 18,637.25 and 7,536.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,504.71 : 18,637.25 = 7,536.43 : x
2. Step 2: Convert to fraction form
   13,504.71/18,637.25 = 7,536.43/x
3. Step 3: Cross multiply
   13,504.71x = 18,637.25 × 7,536.43
4. Step 4: Simplify right side
   13,504.71x = 140,458,330.02
5. Step 5: Solve for x
   x = 140,458,330.02/13,504.71
6. Step 6: Final answer
   x = 10,400.69