Finding the Fourth Proportional to 41,710.76, 62,566.32 and 12,128.72

Step by Step Solution

1. Step 1: Write the proportion equation
   41,710.76 : 62,566.32 = 12,128.72 : x
2. Step 2: Convert to fraction form
   41,710.76/62,566.32 = 12,128.72/x
3. Step 3: Cross multiply
   41,710.76x = 62,566.32 × 12,128.72
4. Step 4: Simplify right side
   41,710.76x = 758,849,376.71
5. Step 5: Solve for x
   x = 758,849,376.71/41,710.76
6. Step 6: Final answer
   x = 18,193.13