Finding the Fourth Proportional to 8,095.56, 11,152.72 and 7,721.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,095.56 : 11,152.72 = 7,721.88 : x
2. Step 2: Convert to fraction form
   8,095.56/11,152.72 = 7,721.88/x
3. Step 3: Cross multiply
   8,095.56x = 11,152.72 × 7,721.88
4. Step 4: Simplify right side
   8,095.56x = 86,119,965.51
5. Step 5: Solve for x
   x = 86,119,965.51/8,095.56
6. Step 6: Final answer
   x = 10,637.93