Finding the Fourth Proportional to 25,921.96, 35,781.06 and 17,974.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,921.96 : 35,781.06 = 17,974.72 : x
2. Step 2: Convert to fraction form
   25,921.96/35,781.06 = 17,974.72/x
3. Step 3: Cross multiply
   25,921.96x = 35,781.06 × 17,974.72
4. Step 4: Simplify right side
   25,921.96x = 643,154,534.80
5. Step 5: Solve for x
   x = 643,154,534.80/25,921.96
6. Step 6: Final answer
   x = 24,811.18