Finding the Fourth Proportional to 9,896.61, 13,657.34 and 5,359.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,896.61 : 13,657.34 = 5,359.34 : x
2. Step 2: Convert to fraction form
   9,896.61/13,657.34 = 5,359.34/x
3. Step 3: Cross multiply
   9,896.61x = 13,657.34 × 5,359.34
4. Step 4: Simplify right side
   9,896.61x = 73,194,328.56
5. Step 5: Solve for x
   x = 73,194,328.56/9,896.61
6. Step 6: Final answer
   x = 7,395.90