Finding the Fourth Proportional to 12,847.15, 17,728.63 and 7,541.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,847.15 : 17,728.63 = 7,541.83 : x
2. Step 2: Convert to fraction form
   12,847.15/17,728.63 = 7,541.83/x
3. Step 3: Cross multiply
   12,847.15x = 17,728.63 × 7,541.83
4. Step 4: Simplify right side
   12,847.15x = 133,706,313.59
5. Step 5: Solve for x
   x = 133,706,313.59/12,847.15
6. Step 6: Final answer
   x = 10,407.47