Finding the Fourth Proportional to 9,978.41, 13,769.89 and 5,502.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978.41 : 13,769.89 = 5,502.25 : x
2. Step 2: Convert to fraction form
   9,978.41/13,769.89 = 5,502.25/x
3. Step 3: Cross multiply
   9,978.41x = 13,769.89 × 5,502.25
4. Step 4: Simplify right side
   9,978.41x = 75,765,377.25
5. Step 5: Solve for x
   x = 75,765,377.25/9,978.41
6. Step 6: Final answer
   x = 7,592.93