Finding the Fourth Proportional to 9,555.83, 13,189.80 and 5,779.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,555.83 : 13,189.80 = 5,779.01 : x
2. Step 2: Convert to fraction form
   9,555.83/13,189.80 = 5,779.01/x
3. Step 3: Cross multiply
   9,555.83x = 13,189.80 × 5,779.01
4. Step 4: Simplify right side
   9,555.83x = 76,223,920.15
5. Step 5: Solve for x
   x = 76,223,920.15/9,555.83
6. Step 6: Final answer
   x = 7,976.70