Finding the Fourth Proportional to 13,016.47, 19,524.64 and 3,155.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,016.47 : 19,524.64 = 3,155.75 : x
2. Step 2: Convert to fraction form
   13,016.47/19,524.64 = 3,155.75/x
3. Step 3: Cross multiply
   13,016.47x = 19,524.64 × 3,155.75
4. Step 4: Simplify right side
   13,016.47x = 61,614,825.98
5. Step 5: Solve for x
   x = 61,614,825.98/13,016.47
6. Step 6: Final answer
   x = 4,733.61