Finding the Fourth Proportional to 6,307.86, 8,705.01 and 3,619.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,307.86 : 8,705.01 = 3,619.30 : x
2. Step 2: Convert to fraction form
   6,307.86/8,705.01 = 3,619.30/x
3. Step 3: Cross multiply
   6,307.86x = 8,705.01 × 3,619.30
4. Step 4: Simplify right side
   6,307.86x = 31,506,016.16
5. Step 5: Solve for x
   x = 31,506,016.16/6,307.86
6. Step 6: Final answer
   x = 4,994.73