Finding the Fourth Proportional to 9,978.52, 13,770.46 and 5,502.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978.52 : 13,770.46 = 5,502.43 : x
2. Step 2: Convert to fraction form
   9,978.52/13,770.46 = 5,502.43/x
3. Step 3: Cross multiply
   9,978.52x = 13,770.46 × 5,502.43
4. Step 4: Simplify right side
   9,978.52x = 75,770,992.22
5. Step 5: Solve for x
   x = 75,770,992.22/9,978.52
6. Step 6: Final answer
   x = 7,593.41