Finding the Fourth Proportional to 25,215.56, 37,823.42 and 7,685.32

Step by Step Solution

1. Step 1: Write the proportion equation
   25,215.56 : 37,823.42 = 7,685.32 : x
2. Step 2: Convert to fraction form
   25,215.56/37,823.42 = 7,685.32/x
3. Step 3: Cross multiply
   25,215.56x = 37,823.42 × 7,685.32
4. Step 4: Simplify right side
   25,215.56x = 290,685,086.19
5. Step 5: Solve for x
   x = 290,685,086.19/25,215.56
6. Step 6: Final answer
   x = 11,528.00