Finding the Fourth Proportional to 10,867.79, 16,302.72 and 4,541.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,867.79 : 16,302.72 = 4,541.90 : x
2. Step 2: Convert to fraction form
   10,867.79/16,302.72 = 4,541.90/x
3. Step 3: Cross multiply
   10,867.79x = 16,302.72 × 4,541.90
4. Step 4: Simplify right side
   10,867.79x = 74,045,242.45
5. Step 5: Solve for x
   x = 74,045,242.45/10,867.79
6. Step 6: Final answer
   x = 6,813.28