Finding the Fourth Proportional to 10,937.94, 16,388.06 and 8,612.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,937.94 : 16,388.06 = 8,612.82 : x
2. Step 2: Convert to fraction form
   10,937.94/16,388.06 = 8,612.82/x
3. Step 3: Cross multiply
   10,937.94x = 16,388.06 × 8,612.82
4. Step 4: Simplify right side
   10,937.94x = 141,147,410.93
5. Step 5: Solve for x
   x = 141,147,410.93/10,937.94
6. Step 6: Final answer
   x = 12,904.39