Finding the Fourth Proportional to 9,981.24, 13,774.20 and 5,505.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,981.24 : 13,774.20 = 5,505.15 : x
2. Step 2: Convert to fraction form
   9,981.24/13,774.20 = 5,505.15/x
3. Step 3: Cross multiply
   9,981.24x = 13,774.20 × 5,505.15
4. Step 4: Simplify right side
   9,981.24x = 75,829,021.63
5. Step 5: Solve for x
   x = 75,829,021.63/9,981.24
6. Step 6: Final answer
   x = 7,597.15