Finding the Fourth Proportional to 9,976.89, 14,964.12 and 2,580.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,976.89 : 14,964.12 = 2,580.74 : x
2. Step 2: Convert to fraction form
   9,976.89/14,964.12 = 2,580.74/x
3. Step 3: Cross multiply
   9,976.89x = 14,964.12 × 2,580.74
4. Step 4: Simplify right side
   9,976.89x = 38,618,428.23
5. Step 5: Solve for x
   x = 38,618,428.23/9,976.89
6. Step 6: Final answer
   x = 3,870.79