Finding the Fourth Proportional to 5,088.35, 7,630.69 and 3,994.85

Step by Step Solution

1. Step 1: Write the proportion equation
   5,088.35 : 7,630.69 = 3,994.85 : x
2. Step 2: Convert to fraction form
   5,088.35/7,630.69 = 3,994.85/x
3. Step 3: Cross multiply
   5,088.35x = 7,630.69 × 3,994.85
4. Step 4: Simplify right side
   5,088.35x = 30,483,461.95
5. Step 5: Solve for x
   x = 30,483,461.95/5,088.35
6. Step 6: Final answer
   x = 5,990.83