Finding the Fourth Proportional to 9,779.32, 14,664.66 and 3,619

Step by Step Solution

1. Step 1: Write the proportion equation
   9,779.32 : 14,664.66 = 3,619 : x
2. Step 2: Convert to fraction form
   9,779.32/14,664.66 = 3,619/x
3. Step 3: Cross multiply
   9,779.32x = 14,664.66 × 3,619
4. Step 4: Simplify right side
   9,779.32x = 53,071,404.54
5. Step 5: Solve for x
   x = 53,071,404.54/9,779.32
6. Step 6: Final answer
   x = 5,426.90