Finding the Fourth Proportional to 7,092.60, 9,788.72 and 5,109.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,092.60 : 9,788.72 = 5,109.72 : x
2. Step 2: Convert to fraction form
   7,092.60/9,788.72 = 5,109.72/x
3. Step 3: Cross multiply
   7,092.60x = 9,788.72 × 5,109.72
4. Step 4: Simplify right side
   7,092.60x = 50,017,618.36
5. Step 5: Solve for x
   x = 50,017,618.36/7,092.60
6. Step 6: Final answer
   x = 7,052.09