Finding the Fourth Proportional to 9,779.01, 13,494.78 and 5,587.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,779.01 : 13,494.78 = 5,587.26 : x
2. Step 2: Convert to fraction form
   9,779.01/13,494.78 = 5,587.26/x
3. Step 3: Cross multiply
   9,779.01x = 13,494.78 × 5,587.26
4. Step 4: Simplify right side
   9,779.01x = 75,398,844.50
5. Step 5: Solve for x
   x = 75,398,844.50/9,779.01
6. Step 6: Final answer
   x = 7,710.27