Finding the Fourth Proportional to 7,100.82, 10,651.32 and 3,980.34

Step by Step Solution

1. Step 1: Write the proportion equation
   7,100.82 : 10,651.32 = 3,980.34 : x
2. Step 2: Convert to fraction form
   7,100.82/10,651.32 = 3,980.34/x
3. Step 3: Cross multiply
   7,100.82x = 10,651.32 × 3,980.34
4. Step 4: Simplify right side
   7,100.82x = 42,395,875.05
5. Step 5: Solve for x
   x = 42,395,875.05/7,100.82
6. Step 6: Final answer
   x = 5,970.56