Finding the Fourth Proportional to 11,516.08, 15,898.80 and 7,744.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,516.08 : 15,898.80 = 7,744.72 : x
2. Step 2: Convert to fraction form
   11,516.08/15,898.80 = 7,744.72/x
3. Step 3: Cross multiply
   11,516.08x = 15,898.80 × 7,744.72
4. Step 4: Simplify right side
   11,516.08x = 123,131,754.34
5. Step 5: Solve for x
   x = 123,131,754.34/11,516.08
6. Step 6: Final answer
   x = 10,692.16