Finding the Fourth Proportional to 13,093.92, 18,070.56 and 7,788.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,093.92 : 18,070.56 = 7,788.96 : x
2. Step 2: Convert to fraction form
   13,093.92/18,070.56 = 7,788.96/x
3. Step 3: Cross multiply
   13,093.92x = 18,070.56 × 7,788.96
4. Step 4: Simplify right side
   13,093.92x = 140,750,869.02
5. Step 5: Solve for x
   x = 140,750,869.02/13,093.92
6. Step 6: Final answer
   x = 10,749.33