Finding the Fourth Proportional to 25,925.96, 35,786.58 and 17,978.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,925.96 : 35,786.58 = 17,978.72 : x
2. Step 2: Convert to fraction form
   25,925.96/35,786.58 = 17,978.72/x
3. Step 3: Cross multiply
   25,925.96x = 35,786.58 × 17,978.72
4. Step 4: Simplify right side
   25,925.96x = 643,396,901.58
5. Step 5: Solve for x
   x = 643,396,901.58/25,925.96
6. Step 6: Final answer
   x = 24,816.71