Finding the Fourth Proportional to 10,842.72, 16,258.55 and 4,994.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,842.72 : 16,258.55 = 4,994.25 : x
2. Step 2: Convert to fraction form
   10,842.72/16,258.55 = 4,994.25/x
3. Step 3: Cross multiply
   10,842.72x = 16,258.55 × 4,994.25
4. Step 4: Simplify right side
   10,842.72x = 81,199,238.37
5. Step 5: Solve for x
   x = 81,199,238.37/10,842.72
6. Step 6: Final answer
   x = 7,488.83