Finding the Fourth Proportional to 9,980.92, 13,773.34 and 5,504.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,980.92 : 13,773.34 = 5,504.86 : x
2. Step 2: Convert to fraction form
   9,980.92/13,773.34 = 5,504.86/x
3. Step 3: Cross multiply
   9,980.92x = 13,773.34 × 5,504.86
4. Step 4: Simplify right side
   9,980.92x = 75,820,308.43
5. Step 5: Solve for x
   x = 75,820,308.43/9,980.92
6. Step 6: Final answer
   x = 7,596.53