Finding the Fourth Proportional to 6,987.60, 10,493.55 and 3,707.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,987.60 : 10,493.55 = 3,707.10 : x
2. Step 2: Convert to fraction form
   6,987.60/10,493.55 = 3,707.10/x
3. Step 3: Cross multiply
   6,987.60x = 10,493.55 × 3,707.10
4. Step 4: Simplify right side
   6,987.60x = 38,900,639.21
5. Step 5: Solve for x
   x = 38,900,639.21/6,987.60
6. Step 6: Final answer
   x = 5,567.10