Finding the Fourth Proportional to 13,016.09, 19,523.96 and 3,155.45

Step by Step Solution

1. Step 1: Write the proportion equation
   13,016.09 : 19,523.96 = 3,155.45 : x
2. Step 2: Convert to fraction form
   13,016.09/19,523.96 = 3,155.45/x
3. Step 3: Cross multiply
   13,016.09x = 19,523.96 × 3,155.45
4. Step 4: Simplify right side
   13,016.09x = 61,606,912.61
5. Step 5: Solve for x
   x = 61,606,912.61/13,016.09
6. Step 6: Final answer
   x = 4,733.14