Finding the Fourth Proportional to 13,561.63, 18,714.04 and 7,896.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,561.63 : 18,714.04 = 7,896.42 : x
2. Step 2: Convert to fraction form
   13,561.63/18,714.04 = 7,896.42/x
3. Step 3: Cross multiply
   13,561.63x = 18,714.04 × 7,896.42
4. Step 4: Simplify right side
   13,561.63x = 147,773,900.00
5. Step 5: Solve for x
   x = 147,773,900.00/13,561.63
6. Step 6: Final answer
   x = 10,896.47