Finding the Fourth Proportional to 23,265.82, 32,112.51 and 13,200.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,265.82 : 32,112.51 = 13,200.15 : x
2. Step 2: Convert to fraction form
   23,265.82/32,112.51 = 13,200.15/x
3. Step 3: Cross multiply
   23,265.82x = 32,112.51 × 13,200.15
4. Step 4: Simplify right side
   23,265.82x = 423,889,948.88
5. Step 5: Solve for x
   x = 423,889,948.88/23,265.82
6. Step 6: Final answer
   x = 18,219.43