Finding the Fourth Proportional to 4,789.98, 7,142.00 and 4,702.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,789.98 : 7,142.00 = 4,702.50 : x
2. Step 2: Convert to fraction form
   4,789.98/7,142.00 = 4,702.50/x
3. Step 3: Cross multiply
   4,789.98x = 7,142.00 × 4,702.50
4. Step 4: Simplify right side
   4,789.98x = 33,585,231.49
5. Step 5: Solve for x
   x = 33,585,231.49/4,789.98
6. Step 6: Final answer
   x = 7,011.56