Finding the Fourth Proportional to 4,973.83, 7,456.98 and 4,288.57

Step by Step Solution

1. Step 1: Write the proportion equation
   4,973.83 : 7,456.98 = 4,288.57 : x
2. Step 2: Convert to fraction form
   4,973.83/7,456.98 = 4,288.57/x
3. Step 3: Cross multiply
   4,973.83x = 7,456.98 × 4,288.57
4. Step 4: Simplify right side
   4,973.83x = 31,979,780.72
5. Step 5: Solve for x
   x = 31,979,780.72/4,973.83
6. Step 6: Final answer
   x = 6,429.61