Finding the Fourth Proportional to 10,100.52, 15,156.36 and 4,257

Step by Step Solution

1. Step 1: Write the proportion equation
   10,100.52 : 15,156.36 = 4,257 : x
2. Step 2: Convert to fraction form
   10,100.52/15,156.36 = 4,257/x
3. Step 3: Cross multiply
   10,100.52x = 15,156.36 × 4,257
4. Step 4: Simplify right side
   10,100.52x = 64,520,624.52
5. Step 5: Solve for x
   x = 64,520,624.52/10,100.52
6. Step 6: Final answer
   x = 6,387.85