Finding the Fourth Proportional to 25,016.97, 37,507.81 and 12,528.06

Step by Step Solution

1. Step 1: Write the proportion equation
   25,016.97 : 37,507.81 = 12,528.06 : x
2. Step 2: Convert to fraction form
   25,016.97/37,507.81 = 12,528.06/x
3. Step 3: Cross multiply
   25,016.97x = 37,507.81 × 12,528.06
4. Step 4: Simplify right side
   25,016.97x = 469,900,094.15
5. Step 5: Solve for x
   x = 469,900,094.15/25,016.97
6. Step 6: Final answer
   x = 18,783.25