Finding the Fourth Proportional to 32,686.47, 45,109.31 and 18,351

Step by Step Solution

1. Step 1: Write the proportion equation
   32,686.47 : 45,109.31 = 18,351 : x
2. Step 2: Convert to fraction form
   32,686.47/45,109.31 = 18,351/x
3. Step 3: Cross multiply
   32,686.47x = 45,109.31 × 18,351
4. Step 4: Simplify right side
   32,686.47x = 827,800,856.06
5. Step 5: Solve for x
   x = 827,800,856.06/32,686.47
6. Step 6: Final answer
   x = 25,325.49