Finding the Fourth Proportional to 13,091.38, 18,066.56 and 7,503.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,091.38 : 18,066.56 = 7,503.46 : x
2. Step 2: Convert to fraction form
   13,091.38/18,066.56 = 7,503.46/x
3. Step 3: Cross multiply
   13,091.38x = 18,066.56 × 7,503.46
4. Step 4: Simplify right side
   13,091.38x = 135,561,627.61
5. Step 5: Solve for x
   x = 135,561,627.61/13,091.38
6. Step 6: Final answer
   x = 10,355.03