Finding the Fourth Proportional to 12,528.72, 18,796.77 and 4,738.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,528.72 : 18,796.77 = 4,738.14 : x
2. Step 2: Convert to fraction form
   12,528.72/18,796.77 = 4,738.14/x
3. Step 3: Cross multiply
   12,528.72x = 18,796.77 × 4,738.14
4. Step 4: Simplify right side
   12,528.72x = 89,061,727.81
5. Step 5: Solve for x
   x = 89,061,727.81/12,528.72
6. Step 6: Final answer
   x = 7,108.61