Finding the Fourth Proportional to 22,448.98, 30,977.40 and 13,016.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,448.98 : 30,977.40 = 13,016.50 : x
2. Step 2: Convert to fraction form
   22,448.98/30,977.40 = 13,016.50/x
3. Step 3: Cross multiply
   22,448.98x = 30,977.40 × 13,016.50
4. Step 4: Simplify right side
   22,448.98x = 403,217,327.10
5. Step 5: Solve for x
   x = 403,217,327.10/22,448.98
6. Step 6: Final answer
   x = 17,961.50