Finding the Fourth Proportional to 4,890.72, 6,742.16 and 4,103.52

Step by Step Solution

1. Step 1: Write the proportion equation
   4,890.72 : 6,742.16 = 4,103.52 : x
2. Step 2: Convert to fraction form
   4,890.72/6,742.16 = 4,103.52/x
3. Step 3: Cross multiply
   4,890.72x = 6,742.16 × 4,103.52
4. Step 4: Simplify right side
   4,890.72x = 27,666,588.40
5. Step 5: Solve for x
   x = 27,666,588.40/4,890.72
6. Step 6: Final answer
   x = 5,656.96