Finding the Fourth Proportional to 12,935.57, 17,847.92 and 7,897.95

Step by Step Solution

1. Step 1: Write the proportion equation
   12,935.57 : 17,847.92 = 7,897.95 : x
2. Step 2: Convert to fraction form
   12,935.57/17,847.92 = 7,897.95/x
3. Step 3: Cross multiply
   12,935.57x = 17,847.92 × 7,897.95
4. Step 4: Simplify right side
   12,935.57x = 140,961,940.27
5. Step 5: Solve for x
   x = 140,961,940.27/12,935.57
6. Step 6: Final answer
   x = 10,897.24