Finding the Fourth Proportional to 5,556.60, 8,317.89 and 5,196.96

Step by Step Solution

1. Step 1: Write the proportion equation
   5,556.60 : 8,317.89 = 5,196.96 : x
2. Step 2: Convert to fraction form
   5,556.60/8,317.89 = 5,196.96/x
3. Step 3: Cross multiply
   5,556.60x = 8,317.89 × 5,196.96
4. Step 4: Simplify right side
   5,556.60x = 43,227,741.61
5. Step 5: Solve for x
   x = 43,227,741.61/5,556.60
6. Step 6: Final answer
   x = 7,779.53