Finding the Fourth Proportional to 8,738.79, 12,060.33 and 5,383.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,738.79 : 12,060.33 = 5,383.56 : x
2. Step 2: Convert to fraction form
   8,738.79/12,060.33 = 5,383.56/x
3. Step 3: Cross multiply
   8,738.79x = 12,060.33 × 5,383.56
4. Step 4: Simplify right side
   8,738.79x = 64,927,510.17
5. Step 5: Solve for x
   x = 64,927,510.17/8,738.79
6. Step 6: Final answer
   x = 7,429.81