Finding the Fourth Proportional to 10,874.88, 16,301.12 and 4,298.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,874.88 : 16,301.12 = 4,298.40 : x
2. Step 2: Convert to fraction form
   10,874.88/16,301.12 = 4,298.40/x
3. Step 3: Cross multiply
   10,874.88x = 16,301.12 × 4,298.40
4. Step 4: Simplify right side
   10,874.88x = 70,068,734.21
5. Step 5: Solve for x
   x = 70,068,734.21/10,874.88
6. Step 6: Final answer
   x = 6,443.17