Finding the Fourth Proportional to 9,994.34, 13,792.72 and 5,518.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,994.34 : 13,792.72 = 5,518.07 : x
2. Step 2: Convert to fraction form
   9,994.34/13,792.72 = 5,518.07/x
3. Step 3: Cross multiply
   9,994.34x = 13,792.72 × 5,518.07
4. Step 4: Simplify right side
   9,994.34x = 76,109,242.73
5. Step 5: Solve for x
   x = 76,109,242.73/9,994.34
6. Step 6: Final answer
   x = 7,615.24