Finding the Fourth Proportional to 9,879.57, 14,800.73 and 7,677.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,879.57 : 14,800.73 = 7,677.59 : x
2. Step 2: Convert to fraction form
   9,879.57/14,800.73 = 7,677.59/x
3. Step 3: Cross multiply
   9,879.57x = 14,800.73 × 7,677.59
4. Step 4: Simplify right side
   9,879.57x = 113,633,824.25
5. Step 5: Solve for x
   x = 113,633,824.25/9,879.57
6. Step 6: Final answer
   x = 11,501.90