Finding the Fourth Proportional to 10,872.51, 16,306.79 and 4,948.00

Step by Step Solution

1. Step 1: Write the proportion equation
   10,872.51 : 16,306.79 = 4,948.00 : x
2. Step 2: Convert to fraction form
   10,872.51/16,306.79 = 4,948.00/x
3. Step 3: Cross multiply
   10,872.51x = 16,306.79 × 4,948.00
4. Step 4: Simplify right side
   10,872.51x = 80,685,915.39
5. Step 5: Solve for x
   x = 80,685,915.39/10,872.51
6. Step 6: Final answer
   x = 7,421.09