Finding the Fourth Proportional to 13,101.42, 18,076.88 and 7,434.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,101.42 : 18,076.88 = 7,434.88 : x
2. Step 2: Convert to fraction form
   13,101.42/18,076.88 = 7,434.88/x
3. Step 3: Cross multiply
   13,101.42x = 18,076.88 × 7,434.88
4. Step 4: Simplify right side
   13,101.42x = 134,399,433.57
5. Step 5: Solve for x
   x = 134,399,433.57/13,101.42
6. Step 6: Final answer
   x = 10,258.39