Finding the Fourth Proportional to 9,981.96, 13,774.34 and 5,505.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,981.96 : 13,774.34 = 5,505.88 : x
2. Step 2: Convert to fraction form
   9,981.96/13,774.34 = 5,505.88/x
3. Step 3: Cross multiply
   9,981.96x = 13,774.34 × 5,505.88
4. Step 4: Simplify right side
   9,981.96x = 75,839,863.12
5. Step 5: Solve for x
   x = 75,839,863.12/9,981.96
6. Step 6: Final answer
   x = 7,597.69