Finding the Fourth Proportional to 9,986.91, 14,989.56 and 5,059.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,986.91 : 14,989.56 = 5,059.98 : x
2. Step 2: Convert to fraction form
   9,986.91/14,989.56 = 5,059.98/x
3. Step 3: Cross multiply
   9,986.91x = 14,989.56 × 5,059.98
4. Step 4: Simplify right side
   9,986.91x = 75,846,873.81
5. Step 5: Solve for x
   x = 75,846,873.81/9,986.91
6. Step 6: Final answer
   x = 7,594.63