Finding the Fourth Proportional to 9,915.86, 14,869.94 and 4,982.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,915.86 : 14,869.94 = 4,982.06 : x
2. Step 2: Convert to fraction form
   9,915.86/14,869.94 = 4,982.06/x
3. Step 3: Cross multiply
   9,915.86x = 14,869.94 × 4,982.06
4. Step 4: Simplify right side
   9,915.86x = 74,082,945.54
5. Step 5: Solve for x
   x = 74,082,945.54/9,915.86
6. Step 6: Final answer
   x = 7,471.15