Finding the Fourth Proportional to 41,997.96, 62,977.98 and 12,405.48

Step by Step Solution

1. Step 1: Write the proportion equation
   41,997.96 : 62,977.98 = 12,405.48 : x
2. Step 2: Convert to fraction form
   41,997.96/62,977.98 = 12,405.48/x
3. Step 3: Cross multiply
   41,997.96x = 62,977.98 × 12,405.48
4. Step 4: Simplify right side
   41,997.96x = 781,272,071.33
5. Step 5: Solve for x
   x = 781,272,071.33/41,997.96
6. Step 6: Final answer
   x = 18,602.62