Finding the Fourth Proportional to 8,697.83, 12,002.86 and 4,920.91

Step by Step Solution

1. Step 1: Write the proportion equation
   8,697.83 : 12,002.86 = 4,920.91 : x
2. Step 2: Convert to fraction form
   8,697.83/12,002.86 = 4,920.91/x
3. Step 3: Cross multiply
   8,697.83x = 12,002.86 × 4,920.91
4. Step 4: Simplify right side
   8,697.83x = 59,064,933.79
5. Step 5: Solve for x
   x = 59,064,933.79/8,697.83
6. Step 6: Final answer
   x = 6,790.76