Finding the Fourth Proportional to 9,976.68, 14,945.88 and 5,580.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,976.68 : 14,945.88 = 5,580.84 : x
2. Step 2: Convert to fraction form
   9,976.68/14,945.88 = 5,580.84/x
3. Step 3: Cross multiply
   9,976.68x = 14,945.88 × 5,580.84
4. Step 4: Simplify right side
   9,976.68x = 83,410,564.94
5. Step 5: Solve for x
   x = 83,410,564.94/9,976.68
6. Step 6: Final answer
   x = 8,360.55