Finding the Fourth Proportional to 9,981.92, 13,774.53 and 5,730.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,981.92 : 13,774.53 = 5,730.03 : x
2. Step 2: Convert to fraction form
   9,981.92/13,774.53 = 5,730.03/x
3. Step 3: Cross multiply
   9,981.92x = 13,774.53 × 5,730.03
4. Step 4: Simplify right side
   9,981.92x = 78,928,470.14
5. Step 5: Solve for x
   x = 78,928,470.14/9,981.92
6. Step 6: Final answer
   x = 7,907.15