Finding the Fourth Proportional to 8,713.77, 13,063.30 and 3,779.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,713.77 : 13,063.30 = 3,779.69 : x
2. Step 2: Convert to fraction form
   8,713.77/13,063.30 = 3,779.69/x
3. Step 3: Cross multiply
   8,713.77x = 13,063.30 × 3,779.69
4. Step 4: Simplify right side
   8,713.77x = 49,375,191.72
5. Step 5: Solve for x
   x = 49,375,191.72/8,713.77
6. Step 6: Final answer
   x = 5,666.34