Finding the Fourth Proportional to 4,990.52, 7,452.31 and 4,737.80

Step by Step Solution

1. Step 1: Write the proportion equation
   4,990.52 : 7,452.31 = 4,737.80 : x
2. Step 2: Convert to fraction form
   4,990.52/7,452.31 = 4,737.80/x
3. Step 3: Cross multiply
   4,990.52x = 7,452.31 × 4,737.80
4. Step 4: Simplify right side
   4,990.52x = 35,307,554.32
5. Step 5: Solve for x
   x = 35,307,554.32/4,990.52
6. Step 6: Final answer
   x = 7,074.92