Finding the Fourth Proportional to 9,915.75, 14,870.58 and 3,340.17

Step by Step Solution

1. Step 1: Write the proportion equation
   9,915.75 : 14,870.58 = 3,340.17 : x
2. Step 2: Convert to fraction form
   9,915.75/14,870.58 = 3,340.17/x
3. Step 3: Cross multiply
   9,915.75x = 14,870.58 × 3,340.17
4. Step 4: Simplify right side
   9,915.75x = 49,670,265.20
5. Step 5: Solve for x
   x = 49,670,265.20/9,915.75
6. Step 6: Final answer
   x = 5,009.23