Finding the Fourth Proportional to 9,981.64, 13,774.01 and 5,505.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,981.64 : 13,774.01 = 5,505.42 : x
2. Step 2: Convert to fraction form
   9,981.64/13,774.01 = 5,505.42/x
3. Step 3: Cross multiply
   9,981.64x = 13,774.01 × 5,505.42
4. Step 4: Simplify right side
   9,981.64x = 75,831,710.13
5. Step 5: Solve for x
   x = 75,831,710.13/9,981.64
6. Step 6: Final answer
   x = 7,597.12