Finding the Fourth Proportional to 8,780.76, 12,117.24 and 4,801.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,780.76 : 12,117.24 = 4,801.86 : x
2. Step 2: Convert to fraction form
   8,780.76/12,117.24 = 4,801.86/x
3. Step 3: Cross multiply
   8,780.76x = 12,117.24 × 4,801.86
4. Step 4: Simplify right side
   8,780.76x = 58,185,290.07
5. Step 5: Solve for x
   x = 58,185,290.07/8,780.76
6. Step 6: Final answer
   x = 6,626.45