Finding the Fourth Proportional to 10,071.72, 15,107.12 and 3,498.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,071.72 : 15,107.12 = 3,498.42 : x
2. Step 2: Convert to fraction form
   10,071.72/15,107.12 = 3,498.42/x
3. Step 3: Cross multiply
   10,071.72x = 15,107.12 × 3,498.42
4. Step 4: Simplify right side
   10,071.72x = 52,851,037.73
5. Step 5: Solve for x
   x = 52,851,037.73/10,071.72
6. Step 6: Final answer
   x = 5,247.47