Finding the Fourth Proportional to 5,611.68, 8,402.40 and 3,762.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,611.68 : 8,402.40 = 3,762.72 : x
2. Step 2: Convert to fraction form
   5,611.68/8,402.40 = 3,762.72/x
3. Step 3: Cross multiply
   5,611.68x = 8,402.40 × 3,762.72
4. Step 4: Simplify right side
   5,611.68x = 31,615,878.53
5. Step 5: Solve for x
   x = 31,615,878.53/5,611.68
6. Step 6: Final answer
   x = 5,633.94