Finding the Fourth Proportional to 9,976.61, 14,963.69 and 2,580.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,976.61 : 14,963.69 = 2,580.45 : x
2. Step 2: Convert to fraction form
   9,976.61/14,963.69 = 2,580.45/x
3. Step 3: Cross multiply
   9,976.61x = 14,963.69 × 2,580.45
4. Step 4: Simplify right side
   9,976.61x = 38,613,040.96
5. Step 5: Solve for x
   x = 38,613,040.96/9,976.61
6. Step 6: Final answer
   x = 3,870.36