Finding the Fourth Proportional to 8,780.76, 12,117.46 and 5,801.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,780.76 : 12,117.46 = 5,801.58 : x
2. Step 2: Convert to fraction form
   8,780.76/12,117.46 = 5,801.58/x
3. Step 3: Cross multiply
   8,780.76x = 12,117.46 × 5,801.58
4. Step 4: Simplify right side
   8,780.76x = 70,300,413.59
5. Step 5: Solve for x
   x = 70,300,413.59/8,780.76
6. Step 6: Final answer
   x = 8,006.19