Finding the Fourth Proportional to 13,141.02, 18,134.82 and 7,838.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,141.02 : 18,134.82 = 7,838.94 : x
2. Step 2: Convert to fraction form
   13,141.02/18,134.82 = 7,838.94/x
3. Step 3: Cross multiply
   13,141.02x = 18,134.82 × 7,838.94
4. Step 4: Simplify right side
   13,141.02x = 142,157,765.89
5. Step 5: Solve for x
   x = 142,157,765.89/13,141.02
6. Step 6: Final answer
   x = 10,817.86