Finding the Fourth Proportional to 10,605.18, 15,901.46 and 4,031.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,605.18 : 15,901.46 = 4,031.86 : x
2. Step 2: Convert to fraction form
   10,605.18/15,901.46 = 4,031.86/x
3. Step 3: Cross multiply
   10,605.18x = 15,901.46 × 4,031.86
4. Step 4: Simplify right side
   10,605.18x = 64,112,460.52
5. Step 5: Solve for x
   x = 64,112,460.52/10,605.18
6. Step 6: Final answer
   x = 6,045.39