Finding the Fourth Proportional to 9,978.84, 13,770.54 and 5,502.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978.84 : 13,770.54 = 5,502.54 : x
2. Step 2: Convert to fraction form
   9,978.84/13,770.54 = 5,502.54/x
3. Step 3: Cross multiply
   9,978.84x = 13,770.54 × 5,502.54
4. Step 4: Simplify right side
   9,978.84x = 75,772,947.17
5. Step 5: Solve for x
   x = 75,772,947.17/9,978.84
6. Step 6: Final answer
   x = 7,593.36