Finding the Fourth Proportional to 23,198.50, 32,040.15 and 15,631.69

Step by Step Solution

1. Step 1: Write the proportion equation
   23,198.50 : 32,040.15 = 15,631.69 : x
2. Step 2: Convert to fraction form
   23,198.50/32,040.15 = 15,631.69/x
3. Step 3: Cross multiply
   23,198.50x = 32,040.15 × 15,631.69
4. Step 4: Simplify right side
   23,198.50x = 500,841,701.64
5. Step 5: Solve for x
   x = 500,841,701.64/23,198.50
6. Step 6: Final answer
   x = 21,589.40