Finding the Fourth Proportional to 8,776.15, 13,166.72 and 4,335.17

Step by Step Solution

1. Step 1: Write the proportion equation
   8,776.15 : 13,166.72 = 4,335.17 : x
2. Step 2: Convert to fraction form
   8,776.15/13,166.72 = 4,335.17/x
3. Step 3: Cross multiply
   8,776.15x = 13,166.72 × 4,335.17
4. Step 4: Simplify right side
   8,776.15x = 57,079,947.46
5. Step 5: Solve for x
   x = 57,079,947.46/8,776.15
6. Step 6: Final answer
   x = 6,503.99