Finding the Fourth Proportional to 5,499.12, 7,588.98 and 3,930.96

Step by Step Solution

1. Step 1: Write the proportion equation
   5,499.12 : 7,588.98 = 3,930.96 : x
2. Step 2: Convert to fraction form
   5,499.12/7,588.98 = 3,930.96/x
3. Step 3: Cross multiply
   5,499.12x = 7,588.98 × 3,930.96
4. Step 4: Simplify right side
   5,499.12x = 29,831,976.82
5. Step 5: Solve for x
   x = 29,831,976.82/5,499.12
6. Step 6: Final answer
   x = 5,424.86