Finding the Fourth Proportional to 8,897.30, 12,277.33 and 4,917.77

Step by Step Solution

1. Step 1: Write the proportion equation
   8,897.30 : 12,277.33 = 4,917.77 : x
2. Step 2: Convert to fraction form
   8,897.30/12,277.33 = 4,917.77/x
3. Step 3: Cross multiply
   8,897.30x = 12,277.33 × 4,917.77
4. Step 4: Simplify right side
   8,897.30x = 60,377,011.47
5. Step 5: Solve for x
   x = 60,377,011.47/8,897.30
6. Step 6: Final answer
   x = 6,786.00