Finding the Fourth Proportional to 9,996.56, 14,990.20 and 5,837.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,996.56 : 14,990.20 = 5,837.80 : x
2. Step 2: Convert to fraction form
   9,996.56/14,990.20 = 5,837.80/x
3. Step 3: Cross multiply
   9,996.56x = 14,990.20 × 5,837.80
4. Step 4: Simplify right side
   9,996.56x = 87,509,789.56
5. Step 5: Solve for x
   x = 87,509,789.56/9,996.56
6. Step 6: Final answer
   x = 8,753.99