Finding the Fourth Proportional to 9,978.44, 13,770.34 and 5,502.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978.44 : 13,770.34 = 5,502.34 : x
2. Step 2: Convert to fraction form
   9,978.44/13,770.34 = 5,502.34/x
3. Step 3: Cross multiply
   9,978.44x = 13,770.34 × 5,502.34
4. Step 4: Simplify right side
   9,978.44x = 75,769,092.60
5. Step 5: Solve for x
   x = 75,769,092.60/9,978.44
6. Step 6: Final answer
   x = 7,593.28