Finding the Fourth Proportional to 6,611.78, 9,124.01 and 3,779.01

Step by Step Solution

1. Step 1: Write the proportion equation
   6,611.78 : 9,124.01 = 3,779.01 : x
2. Step 2: Convert to fraction form
   6,611.78/9,124.01 = 3,779.01/x
3. Step 3: Cross multiply
   6,611.78x = 9,124.01 × 3,779.01
4. Step 4: Simplify right side
   6,611.78x = 34,479,720.31
5. Step 5: Solve for x
   x = 34,479,720.31/6,611.78
6. Step 6: Final answer
   x = 5,214.89