Finding the Fourth Proportional to 13,142.46, 18,134.34 and 7,835.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,142.46 : 18,134.34 = 7,835.34 : x
2. Step 2: Convert to fraction form
   13,142.46/18,134.34 = 7,835.34/x
3. Step 3: Cross multiply
   13,142.46x = 18,134.34 × 7,835.34
4. Step 4: Simplify right side
   13,142.46x = 142,088,719.58
5. Step 5: Solve for x
   x = 142,088,719.58/13,142.46
6. Step 6: Final answer
   x = 10,811.42