Finding the Fourth Proportional to 49,409.40, 68,184.72 and 28,188.48

Step by Step Solution

1. Step 1: Write the proportion equation
   49,409.40 : 68,184.72 = 28,188.48 : x
2. Step 2: Convert to fraction form
   49,409.40/68,184.72 = 28,188.48/x
3. Step 3: Cross multiply
   49,409.40x = 68,184.72 × 28,188.48
4. Step 4: Simplify right side
   49,409.40x = 1,922,023,616.03
5. Step 5: Solve for x
   x = 1,922,023,616.03/49,409.40
6. Step 6: Final answer
   x = 38,899.96