Finding the Fourth Proportional to 10,084.30, 15,134.34 and 6,986.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,084.30 : 15,134.34 = 6,986.05 : x
2. Step 2: Convert to fraction form
   10,084.30/15,134.34 = 6,986.05/x
3. Step 3: Cross multiply
   10,084.30x = 15,134.34 × 6,986.05
4. Step 4: Simplify right side
   10,084.30x = 105,729,244.32
5. Step 5: Solve for x
   x = 105,729,244.32/10,084.30
6. Step 6: Final answer
   x = 10,484.54