Finding the Fourth Proportional to 25,886.47, 35,680.31 and 18,323.10

Step by Step Solution

1. Step 1: Write the proportion equation
   25,886.47 : 35,680.31 = 18,323.10 : x
2. Step 2: Convert to fraction form
   25,886.47/35,680.31 = 18,323.10/x
3. Step 3: Cross multiply
   25,886.47x = 35,680.31 × 18,323.10
4. Step 4: Simplify right side
   25,886.47x = 653,773,888.16
5. Step 5: Solve for x
   x = 653,773,888.16/25,886.47
6. Step 6: Final answer
   x = 25,255.43