Finding the Fourth Proportional to 7,897.50, 10,898.69 and 5,107.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,897.50 : 10,898.69 = 5,107.86 : x
2. Step 2: Convert to fraction form
   7,897.50/10,898.69 = 5,107.86/x
3. Step 3: Cross multiply
   7,897.50x = 10,898.69 × 5,107.86
4. Step 4: Simplify right side
   7,897.50x = 55,668,957.16
5. Step 5: Solve for x
   x = 55,668,957.16/7,897.50
6. Step 6: Final answer
   x = 7,048.93