Finding the Fourth Proportional to 9,984.72, 13,781.76 and 5,792.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,984.72 : 13,781.76 = 5,792.16 : x
2. Step 2: Convert to fraction form
   9,984.72/13,781.76 = 5,792.16/x
3. Step 3: Cross multiply
   9,984.72x = 13,781.76 × 5,792.16
4. Step 4: Simplify right side
   9,984.72x = 79,826,159.00
5. Step 5: Solve for x
   x = 79,826,159.00/9,984.72
6. Step 6: Final answer
   x = 7,994.83