Finding the Fourth Proportional to 13,073.32, 18,042.72 and 7,768.14

Step by Step Solution

1. Step 1: Write the proportion equation
   13,073.32 : 18,042.72 = 7,768.14 : x
2. Step 2: Convert to fraction form
   13,073.32/18,042.72 = 7,768.14/x
3. Step 3: Cross multiply
   13,073.32x = 18,042.72 × 7,768.14
4. Step 4: Simplify right side
   13,073.32x = 140,158,374.94
5. Step 5: Solve for x
   x = 140,158,374.94/13,073.32
6. Step 6: Final answer
   x = 10,720.95