Finding the Fourth Proportional to 9,839.89, 14,764.93 and 3,915.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,839.89 : 14,764.93 = 3,915.50 : x
2. Step 2: Convert to fraction form
   9,839.89/14,764.93 = 3,915.50/x
3. Step 3: Cross multiply
   9,839.89x = 14,764.93 × 3,915.50
4. Step 4: Simplify right side
   9,839.89x = 57,812,063.84
5. Step 5: Solve for x
   x = 57,812,063.84/9,839.89
6. Step 6: Final answer
   x = 5,875.28