Finding the Fourth Proportional to 49,606.86, 68,430.18 and 31,424.28

Step by Step Solution

1. Step 1: Write the proportion equation
   49,606.86 : 68,430.18 = 31,424.28 : x
2. Step 2: Convert to fraction form
   49,606.86/68,430.18 = 31,424.28/x
3. Step 3: Cross multiply
   49,606.86x = 68,430.18 × 31,424.28
4. Step 4: Simplify right side
   49,606.86x = 2,150,369,136.77
5. Step 5: Solve for x
   x = 2,150,369,136.77/49,606.86
6. Step 6: Final answer
   x = 43,348.22