Finding the Fourth Proportional to 7,870.82, 11,799.95 and 3,708.63

Step by Step Solution

1. Step 1: Write the proportion equation
   7,870.82 : 11,799.95 = 3,708.63 : x
2. Step 2: Convert to fraction form
   7,870.82/11,799.95 = 3,708.63/x
3. Step 3: Cross multiply
   7,870.82x = 11,799.95 × 3,708.63
4. Step 4: Simplify right side
   7,870.82x = 43,761,630.03
5. Step 5: Solve for x
   x = 43,761,630.03/7,870.82
6. Step 6: Final answer
   x = 5,559.99