Finding the Fourth Proportional to 9,981.91, 13,774.81 and 5,505.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,981.91 : 13,774.81 = 5,505.58 : x
2. Step 2: Convert to fraction form
   9,981.91/13,774.81 = 5,505.58/x
3. Step 3: Cross multiply
   9,981.91x = 13,774.81 × 5,505.58
4. Step 4: Simplify right side
   9,981.91x = 75,838,318.44
5. Step 5: Solve for x
   x = 75,838,318.44/9,981.91
6. Step 6: Final answer
   x = 7,597.58