Finding the Fourth Proportional to 9,981.48, 13,771.98 and 5,788.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,981.48 : 13,771.98 = 5,788.92 : x
2. Step 2: Convert to fraction form
   9,981.48/13,771.98 = 5,788.92/x
3. Step 3: Cross multiply
   9,981.48x = 13,771.98 × 5,788.92
4. Step 4: Simplify right side
   9,981.48x = 79,724,890.46
5. Step 5: Solve for x
   x = 79,724,890.46/9,981.48
6. Step 6: Final answer
   x = 7,987.28