Finding the Fourth Proportional to 25,146.61, 37,724.52 and 8,280.58

Step by Step Solution

1. Step 1: Write the proportion equation
   25,146.61 : 37,724.52 = 8,280.58 : x
2. Step 2: Convert to fraction form
   25,146.61/37,724.52 = 8,280.58/x
3. Step 3: Cross multiply
   25,146.61x = 37,724.52 × 8,280.58
4. Step 4: Simplify right side
   25,146.61x = 312,380,905.82
5. Step 5: Solve for x
   x = 312,380,905.82/25,146.61
6. Step 6: Final answer
   x = 12,422.39